I frankly don't remember how it was in the first game, I think you switched over to other members of your team (you started levels as a team and then got killed

I frankly don't remember how it was in the first game, I think you switched over to other members of your team (you started levels as a team and then got killed off one by one). Getting a team member dead meant you couldn't have the same team member again (i.e. you had to use worse people).