i can back this up…
it didnt take many shots for me (when i used the iron site) and i suck on 360
I played Brink
Yo from what I’ve heard and seen brink is 8 player co-op but there seems to be 3 other soldiers (containment city part 1 video) that seem to be main characters of sorts so is the game 7 on 7 with the AIs doing work or is it 4 on 4 and the 3 Dudes disapper
The game is 8v8. It supports offline play with bots, 8 player co-op and full 8v8 multiplayer. The playable build at EGE I think was 4v4 human players, with AI filling in the gaps.
The cutscenes and such that take place, will either involve actual player characters that are playing, or AI if you’re playing solo.
That’s good, you should have a chance to turn around and get a couple shots off before you die if you are quick on your feet (hands) 
That is a very good thing. Almost every gun is 1 or 2 shot kill in CoD, so the game is finding people before they find you more than shootouts, really.
Brink looks sweet by the way.
First post for me 