1) Yes, it's all in-game assets.
2) Yes, that is the actual HUD for the Atlas
3) Yes, it's a "low altitude drop"
4) Yes, that is a Hunchback in the background.
5) Yes, that is a Jenner in the background.
6) No, this is not a pre-rendered video with post effects. It is all in-game engine, the same engine driving the game.
7) Yes, we know that the term was "nominal" but unfortunately couldn't source the term for audio.
8) We are sorry, we didn't realize you guys wanted to look at a naked dude in a vest.
9) You guys have no clue how close to gameplay you're actually watching

10) No, you can't have the music.
Will update this as needed.