I have only just started playing Krieg, but from the description I would be inclined to believe it means after krieg's shield hits 0, any damage taken will add a stack of salt the wound.
It most likely will pop up an icon just above the xp bar like bloodlust and anarchy and all other temorary skills/stacks.
As for what damage will add a stack and won't, I believe it will work on bullet impacts, enemy melee attacks, and radial damage (explosions).
What I'm less sure of, is whether or not it will add a stack for each "tic" of damage off of a DoT like burn or caustic status effects krieg is suffering from.
I also wonder if the Rough Rider shield (capacity 0), combined with being shot many times by a much lower lv opponent who could not likely kill him; would result in Krieg getting to that full stack of 20 in a matter of seconds.
Most chests in one place are in Leviathan's Lair - 14 of them, countung the one in secret chamber.
Leviathan's treasure room is accessible twice during the questline, plus there is a glitch to break into it later. There are hosts of instructions on Youtube, but I've found this one to be the easiest.
I'm about to start a second playthrough of Captain Scarlett, and will try to mark down all chests I find. If anyone has that information, let's work together!
1 chest on the refinery supports, to be jumped to from a moving elevator.
2 chests near vending machines in the middle of the map, in the water under a rock.
1 chest after Sandman, on the right.
1 chest in the middle of first large shantytown ship you go through.
1 chest in top end of the second large shantytown ship, behind a shack.
1 chest on the last ship in the center of the map, right at the turret on the deck.
1 chest on the last ship in the center of the map, on the mast you climb for The Crow's Nest challenge.
1 chest just before the Hyperius arena re-spawn point.
1 chest a little past the H3RL-E's lair.
1 chest in a secret room above the Arm (jump across the drop when returning from H3RL-E).
1 chest on a wooden platform under a house near Maroonie's Secret Stash.
2 chests atop the lighthouse itself.
14 chests in the treasure room. See glitch.
1 chest where you get the Horrid Hideaway challenge
1 chest at the building across the bridge in the middle of the map
1 chest in the southeastern most part of the map (Canyon Deserter Camp).
Yes; the Borderlands Wiki page for e-Tech notes the unique traits of each. E-tech guns actually vary slightly more based on manufacturer; the names and special effects can be different based on manufacturer; for example the PRAMZMA CANNON, which is unsurprisingly a Bandit gun, is a unique class of E-Tech rocket launcher. But in addition to extra special manufacturer-specific stuff, Tediore E-Tech explodes on reload, Hyperion E-Tech stabilizes with recoil, etc.
Interestingly Jakobs and Torgue don't appear to make E-Tech guns, ever. This is probably due to almost all E-Tech guns being elemental; I've seen exactly one non-elemental E-Tech gun (a BlASSter AR, IIRC, from Zed's quest introducing you to E-Tech) and zero explosive E-Tech guns.
Thoughtlock works on anything that can be "held" with Phaselock (anything that doesn't take direct damage instead of being levitated). So most bosses, large enemies like Drifters and Constructors, Buzzards and others. If you can't Toughtlock a target it will take damage from the Phaselock instead just like from a normal Phaselock. It can however affect the majority of Badass/Super Badass enemies just like Phaselock, making them very good targets.
One thing I'm unsure of is whether Sub-sequence will target "unholdable" targets which seeking a next phaselock target. In my experience it won't, but it's hard to tell since non-phaselockable targets are uncommon.
The items in the loot train are always your level in UVHM, even if you've done the DLC at a lower level already. This is great because it means you can just stop by anytime and get some loot of your current level, no matter what level that is.
Note that this does not apply to the lower difficulty levels. The first time you travel to Marcus's Mercenary shop in Normal or TVHM, the mission "Get Frosty" will be generated at your current level. This will cap Mr. Tinder Snowflake's level and also the level of the loot in the train.
Yes it will be possible to do this, the easiest way to do it would be to simply (re)install World of Warcraft making sure to opt for the "advanced" option rather than typical install. This will let you pick an install directory.
At that point you will be able to browse to the external hard drive and create a new folder called "WoW" and install!
I run all of my steam games from an external SSD, it is quite possible to achieve.
As noted in the answers to my question about DLC and levels, the DLCs scale to your level to a certain extent. If you were steamrolling in the main game in your low-to-mid 30's, but are having problems with Hammerlock or Tiny Tina's DLCs, chances are good that the enemies are just closer to your level now than they were before. You've already listed the things I would do in this case - go roll on the Golden Key box, focus on slag first, etc.
If you've beaten "Normal" and then jumped into the DLCs, are you sure you're still on your Normal playthrough? Since you can start the DLCs any time, it's possible you went into True Vault Hunter Mode and then immediately went for the DLCs, which are meant to be played after the main campaign. Worth a double check, at least.
As another Normal/TVHM note, you can go play TVHM for a few levels and the drop back into Normal for the DLCs again. The DLCs on the first playthrough won't scale to your level past the mid 30's, so you can outlevel them and then return to them to steamroll.
Some DLC specific notes:
If you're playing Torgue and trying to repeat the tier 3 levels on some of his quests (notably Bar Room Blitz) - check the level - these are maxed out and almost certainly impossible on your first playthrough.
Hammerlock's Hunt is a really tough DLC all around. The elemental Witch Doctors are a real pain, even if you've leveled up properly.
Similarly, some enemies and boss fights can be super challenging in Tiny Tina's DLC. Some enemies regenerate, and there are many quests that require a lot of endurance.
As a Commando/Siren combo, there are some specific things you can do to survive better. The Siren should probably focus on survivability and elemental damage, with things like Res, higher elemental chance, and faster Phaselock cooldowns. Meanwhile, use the Commando's turret to tank, and have the Commando hide between turret deployments. If the turret is tanking and the Siren hangs back to hand out emergency Res'es, you can make slow progress even when the enemies are tough.
From the page on the Normandy SR-2 on Wikia:
Aside from a full-sized bed, bathroom, office desk, and standard
furniture, the Captain's Cabin features a display case for tracking
the progress on Achievements, a private terminal for monitoring basic
information about squadmates, reading new and archived emails, and
viewing advanced training videos, an armor locker for modifying
Shepard's casual attire and combat armor layout, and a sound system
that can play tracks from the Mass Effect soundtrack.
So yes, you can only play songs from the Mass Effect 3 soundtrack, and the sounds are selected at random. The Mass Effect 3 Soundtrack was composed by Sascha Dikiciyan & Cris Velasco. All the songs are pretty good, but the only option you have is to turn them on or off. At the time of the writing of this answer, the Soundtrack is available only through purchase of the Mass Effect 3 N7 Collector's Edition or Digital Deluxe Edition.
Donation Method - Ask a bot for a Spare Key!
There is a Steam Community bot that people donate extra DotA 2 keys to. You can add the bot as a friend and send him the private message "give dota" to get a DotA 2 key sent to you. You can donate any extra keys you end up with afterwards.
New Method - Buy the access to Dota 2 Beta
Valve gives now the possibility to buy directly an early access bundle through Dota 2 Store. The bundle contains the beta access key and some collectibles.
Old method - Join contests/giveaways
Beta Giveaway Contests (by Dota 2 communities)
One legal and legit way, is to participate to one of many contests available and hope to win. The official community of Dota 2 is PlayDota. I suggest you to register to to that site, because since the launch of Dota 2 Beta it was the main beta key distributor, through random beta keys giveaway (hundreds if not thousands key already distributed).
There are many other places around to check and it has no much sense list all sites here. Just check PlayDota forum and Dota 2 Reddit Channel, that are the two main Dota 2 international community sites at the moment. If a new giveway starts, it is usually advertised there.
SteamGifts is also an interesting community driven gift website (that support Steam logon) that often has Dota 2 keys.
Beta Tester Selection (by Valve)
If you don't have time, skill or attitude for a contest, you can try to install Steam and fill this survey.
It is an hardware survey followed by a simple questionnaire that will be used by Valve to target potential beta testers. Identified subjects will receive the beta access and 2 additional keys to invite some friends.
Be aware of scammers sites or people that try to sell you fake keys, there are many around. Also buying valid keys infringe Steam rules, so just avoid it.