A couple I can think of: Do double nukes. If they kill one ghost, they may not even realize there's yet another nuke headed their way. Nuke right after you begin engaging their army (so, while you're in combat). They may be at a loss at how to deal with it. Finding a nuke dot takes precious time away from your micro, so try to launch the nuke at amoment when it's important for them to micro. Put the red dot in un-obvious places. Right in the middle of the mineral line is a bit obvious, but maybe put the nuke center on high ground, or on a vespene geyser (for Terran the refinery even has a little red dot built into the graphics). People look for the dot in the center of things - I always try to put the dot at the base of a building, right where it meets the ground.

I think they refer to his performances in high level tournaments like IEM Katowice. After that, the Reaper KD8 charge has been nerfed twice. In the Balance Update of March 2017 the cooldown has been increased from 7 seconds to 14 seconds. In the Balance Update of July 2017 the damage was reduced from 10 to 5. I'm not aware about any official statement about Byun in particular.

Heavy reapers opening have been tried especially in the past, but also recently. Check for example Reynor vs Clem As for other kind of cheeses, they don't work very well at the highest level because players know how to scout, how to read what they find and how to react accordingly. If a player scout no 2nd CC and 3 rax, the player knows for sure some form of aggression is coming and from rax without a tech lab attached, it can only be either marines or reapers which are easily dealt with in the same way. The player would then change whatever strategy he/she intended to go for to counter this early aggression, possibly dropping bunkers/spine crawlers/cannons/shield batteries, going heavy on marines or stalkers or queens and lings. This rush is pretty easy to defend, no matter the race. I would be surprise this would work from diamond up. Your fallacy is to take as an example of your thesis random TvX games and comparing their army at the 3 minutes mark with yours, in a totally unrelated game. If a player, after scouting, confirms that the opponent is not going for any kind of aggression and doesn't want to be aggressive from the start himself/herself, the player will invest in the economy and that's why you see few units in the player base.

It takes you at least 90 seconds to be able to siege two tanks, given that the rush distance is usually lower than that and your opponent is already going for a push that would most likely be too late. Marauders are the right units against tanks, combined with Stim Pack. Marauders do +10 damage against Armored units. Combined with effective Stimpack usage, they have almost the same DPS against armored units as Siege Tanks. Consider that supply-wise you can have 3 Marauders for every 2 Tanks, this advantage is escalated. At 125HP, each Marauder can soak up 3 shots from a Tank's siege cannon. They also move faster than any Mech unit, allowing them to establish superior concaves on grouped Tanks. But, there are also Marines so you need to bring your Hellions back to aid your Marauders, as well as your Medivacs to heal your Marauders. If you didn't lose them in your harass, which you always should try to do, you can take them home before he comes given that they are faster units. The only problem left here is scouting, given that you can only create 2 Marauders a minute from one Barracks you can't start them once you see the tanks but you rather have to anticipate for it. One option is to integrate Marauders into your build order, and perhaps an hidden expo once you have the money to a location he can't easily access. But, that only works if you managed to take his production out, so it gets a matter of being able to destroy his remaining units... Indications of an early factory are: Scouting with a worker reveals Gas made before Barracks. Scouting with a worker reveals no second Barracks when you stay till the first marine pops out. Scouting with a single Tier unit reveals no Marauders and a not too big Marine army. Your second scan reveals a Factory or a Tank. He does not come with a 3 Rax Timing Stim Push (~6:00) but rather for a push after 7:30. If you have the resources for it, landing Vikings might help both defensively (against the push) as offensively (against his base), you can always be nasty and hide a building in an area he can't get to anyway so you can freely destroy his base. Your vikings can also become handy to chase him down if he decides to fly away, if you didn't build them you could see a draw... So, going Marauders Hellions Vikings with some Medivacs first for the drop might be viable to do. It's vulnerable to Banshees though, so sufficient scouting once gain is important...

I'll address each point from a Terran perspective. Unit vision up ramps has been reduced by 1. This particular change is intended to hold off protoss 4 gate attack effectiveness. As a Terran it won't affect you much if you have flying units/buildings. Immortal Attack range increased from 5 to 6. This change will make your siege tanks die much faster during battles with protoss armies (assuming they micro the immortals correctly). You may want to ensure that you target these in a skirmish to ensure your tanks stay alive longer. Mothership Acceleration increased from 0.3 to 1.375. Given how little this unit is used, it shouldn't really affect terran play much. All it means is that the mothership can move faster. If you have the right army composition the mothership will still die just as fast, regardless of its movement speed. Mothership's Cloaking Field no longer cloaks all units instantaneously, but rather adds units to the cloak field over time (maximum of 25 per second). This change was to help computers not have a lag spike when the unit entered the field. Because when it entered it cloaked everything causing the system to have a suddenly heavy load on the system. This in turn sort of gave opponents a slight edge, if they noticed the skip late game they knew a mothership was out without scouting. This change really doesn't affect the Terran race at all, just more of a system handling thing. Stalker Blink research time increased from 110 to 140. From a Terran perspective it simply means that this tech will be out slower than before and that you can adjust your play appropriately for that kind of timing push/tactic. Warp Prism Shields increased from 40 to 100. This means it will be a lot harder to kill warp prisms. It's already been noticed that since the patch there are a lot more protoss players making warp prisms and incorporating them into play. In regards to Terran, you're going to have to be on the lookout for a lot more drop/warp-in type play from protoss players. Barracks Build time increased from 60 to 65. This change will affect early terran build timings a lot. An extra 5 seconds on the barracks will throw off the timing of your early SCV production and Orbital Command build times. People are still playing with this timing now. Hellion Infernal Pre-Igniter damage upgrade decreased from 10 to 5. This change was made to lower the effectiveness of the hellion upgrade since blue flame play was dominating TvT play and completely changed the landscape of TvT battles at the high level. Granted the units are still good with the upgrade, you just have to make a few more of them and make more use with them early on. Raven Seeker missile movement speed increased from 2.5 to 2.953. The missle moves faster which means it can catch some slower moving units making it difficult to micro away the unit the missle is chasing. As a terran this is definitely a buff to the ability. Infestor Fungal Growth damage changed from 36 (+30% armored) to 30 (40 vs Armored). This change meant that banelings can survive 1 fungal growth, it was more a change for ZvZ fights than a fight with Terran. However, this lower damage does mean that your medivacs have more time to respond in a marine heavy army. Also does mean that your Armored units (Maruaders, tanks, etc) take slightly less damage as well. Neural Parasite range decreased from 9 to 7. This was called a huge nerf by the zerg community. As a terran with seige tanks in play you'll be less likely to see this kind of play as their infestors have to move that much closer to your units to take control of them. And with any kind of supporting units around, the infestors can die really quickly. Infestors are more likely just to be used for fungal growths versus a terran army now. Overseer Morph cost decreased from 50/100 to 50/50. Cheaper early mobile detection for zerg. More of a balance change for zerg because their units cost a lot of gas (but that's pretty true for all races, except marine heavy play), but might also factor into the the next change causing a new style of play to emerge. Contaminate energy cost increased from 75 to 125. This means you will see less contaminates on your buildings, for most leagues/divisions this ability isn't used much right now, but if it is used properly, it can be really devastating as you won't be able to produce any units from your buildings. Ultralisk Build time decreased from 70 to 55. The actual timing of how long it takes to get to Ultralisk tech doesn't change at all, however getting them into the field faster to join the battle will. A bit of a buff to zerg players that are making a tech switch and trying to get that "surprise" factor on their opponents giving them less time to react. So as a terran, it means you have a lot less time to prepare for them if you scan and see the ultralisk cavern.

According to Liquipedia, lock-on auto-cast only targets units and combat buildings except larva and broodlings. Auto-cast also only targets units that are not locked on. You can, of course, manually target buildings and units that are already locked on.

Terran is extremely versatile. In GSL, where you have to face many opponents with varying playstyles who have had a chance to study your previous games, you can easily be sniped. The best Terrans, like MVP, are capable of playing dozens of different "standard" styles effectively. On the other hand, the best Zergs and Protosses are still funneled into three or four basic "standard" strategies that don't allow much room for strategic innovation or trickery. On ladder, you'll rarely see anyone enough to get a good grasp of their playstyle and how to go about countering it, but teams in GSL specifically prepare for days to match up against one opponent. Additionally, there has been talk that the 1-1-1 build is the root of the problem because it allows so much versatility to either expand or hit incredibly hard-to-stop pushes. Finally, Boxer and Nada were two of the first to switch from professional BW to SC2. In Korea, their influence should not be underestimated- they are probably the two biggest names in competitive StarCraft ever and that's liable to cause a good number of up and coming players to favor Terran. This is most notable on the SlayerS team, which is made up primarily of a number of incredibly good Terran players, all new faces: MMA, Ganzi, Ryung, Taeja.

You can create a game against KI if you go to Custom -> Melee Create a lobby, add A.I. enemies and choose a race. The Button next to it lets you choose a tactic for that a.i.

The APM you waste on trying to trick out a scan is not worth it. He might as well swap a tech lab and create a Raven to send along his arm, so he no longer needs the scans to move out. Furthermore, he only gets 240 - 270 from a MULE so you might be better of using your Mutalisks to harass unaware SCVs or perhaps pick of a Supply Depot in a corner. Your hidden Banelings on his path will catch another few marines. Consider how you could spent the same APM on getting ahead in economy and creating a counter against what your opponent is trying to go. You could try to pick his tanks off-guard with Infestors and then roll in with some more Banelings to do a proper Baneling Bust. There are numerous of other possibilities to keep him contained or even get into his base, it all depends on what he produces... As Sorean mentioned, you could try to work out a strategy. Play a decent amount of games where you try this out and see how you can can reform the game play you describe to be more nasty, combining: Forcing out stims using your Mutalisks to weaken his Bio Ball. Hide Banelings in key locations. Picking of unaware SCVs and Supply Depots. Take his defense down and roll in with a Baneling Bust. If your opponent tricks himself into a scanning pattern instead of MULEs, bonus for you! However, keep you eye out on what he is doing. For example, don't let him counter you with Air... Be sure to scout the map too, you don't want him to sneak in an expansion.

In Galaxy Data Editor, on the Morph ability for both Viking - Assault Mode and Viking - Fighter Mode, the Random Delay Maximum field is set to 0.5 (seconds). It's just a pre-transform delay for effect It also explains the lack of delay on move commands, blink, stim, etc. (they don't have this field set, and in fact may not have it at all)

Juan Manuel's answer is the correct answer in the general case. You have to look at each race as a whole to evaluate balance, not the individual specifics. A 1v1 comparison between an SCV and a probe (or a zealot vs. a marine, or a cannon vs. a turret) may make it seem like one race has a "bonus," but SC2 isn't a game of SCVs vs. drones, it's a game of race vs. race. As for the specific cases: An SCV has 5 more health, but drones regenerate and probes regain shields. This makes them better at worker harassment and marginally better at scouting. Probes also can warp in buildings without stopping; drones can be built many at a time with larva injection, and SCV's can repair. They are all unique units. Command Centers may provide more supply, but Hatcheries cost far less to produce, and Nexuses can be built without requiring the worker to stay there. Also, Zerg overloads provide supply, but also scouting, map vision, creep, detection, and transport with the right upgrades. My point is not that "Terran bonuses are actually not as good as Zerg/Protoss;" my point is that each race has lots of unique strengths and liabilities, lots of units and upgrades that are great at some things and weak at others. The point of SC2 strategy and tactics is to discern these strengths and weaknesses, and use them to one's best advantages to win the game.

I'm a protoss player so I'm on the opposite end of your situation. I believe the way for Terran to win is to never directly encountering the army. Use drops to keep his army out of position and win the attrition war. What I mean by this is that when they pull their army back to base, use your main force to knock out expansions. If you can keep denying expansions, they can't replenish their force as quickly as you can, or they can't afford it. If they don't pull their army back, they're warping in units at home, which means their front line army is that much weaker. Maurader/ghost/viking is a decent composition, but you have to have marines in there as well. Stimmed marines are the highest DPS unit in the game (not counting storms/fungal over a group of units). When the fights start, make sure your vikings are target firing the colossi, a few shift right clicks in the fight will reduce their numbers much better than just A-moving them in. By keeping colossi numbers down, your infantry army is that much stronger. Your ground force should be something like 60% marines, 35% mauraders, and a few ghosts. That said, your army composition should be reflective of what he's making more of (This is assuming an infantry force). If he has more zealots get more marines, more stalkers? More mauraders. I also assume that you're making medivacs to help your healing. You also mention that it's the norm to get +3 armor really fast, and it's right, I do as well, marines do 5 damage (no upgrades) zealots have 2 armor, take off 2 more from guardian shield and you're tickling the zealots with no upgrades. Upgrades make them that much stronger. The answer? Keep up on your attack upgrades too. They essentially cancel out if you are just as high with your attack upgrades. And since you need to make the armory to keep upgrading, might as well do air attack as well (so your vikings can knock down colossi faster). It's also key to keep their colossi numbers down. Losing 2-3 vikings to take out 1 colossi is huge and well worth the trade. This can be combined with drop play. If you see that they are back at base dealing with your drop with warp-ins and haven't moved their army, stim in and attack his main force before he reacts, by targetting the colossi and taking them out of the battle, your infantry force will be that much stronger.

Using a unit tester, assuming both groups are moving towards each other using attack move, no upgrades, no microing, and that all marines are grouped up, the max that I could take out was 3 marines with 1 zealot with 7 hp left, if all 3 marines are spread out with some small space between each unit, zealot survives with 2 hp most of the time. A little marine micro and the zealot will die to 3 marines with 1 or 2 left. 4 marines constantly destroy the zealot.

"RAX" is shorthand for "barracks", a Terran structure that produces infantry units. It's often used to describe build orders. So something like "3-Rax Reaper" is denoting an opener that involves getting three barracks quickly and producing Reaper units with them.

Early scout, mid-game scout.. They are also still good for harrassing the mineral line, especially on vertical terrain.

Wall in, tech up to siege tanks w/ siege, build a few, and plant them at your base entrance. Assuming you scout early enough, this method requires the least micro and will allow you a solid transition into an expansion. You can also try to build up a few bunkers & stock them with marine/marauder. This can be effective as well as long as you keep the ranged Protoss units out of range of your repairing SCVs (a.k.a. walling in). For either of the above, you'll want to watch out for void rays. That's usually how your 4-gate counter will be countered. Banshees with cloak can be somewhat effective but the siege tanks have more longevity in terms of utilization for the rest of the match. Marauders with concussive shells can also be effective if you have the micro for it.

Spreading out your units really helps with storms. Try hard to keep them separated.

You are correct it is the Liberator's attack circle while in defender mode. See here for image. The colour is the same as the player's colour, that's why in my image it is green. In your case your opponent must've been blue and thus the attack circle is also blue.

Medics are not usable units in the multiplayer component of Starcraft 2, along with many other units that exist in campaign but not in multiplayer. Here are the campaign-only units for all races: Terran Zerg Protoss

Line of sight is your ally on this map. There is a elevated area to the northwest of your base with a few ramps leading up to it, try to place your bunkers/tanks at that ramp rather than in your base, also put up a few turrets to prevent annoying science vessels. As for the northeast entrance, send out a engineering bay or barracks out that way to scout to extend the LOS for your tanks guarding that entrance. If your tanks get off the first shot, you will beat them. With enough tanks, they won't even be able to finish seige mode before dying.