Alco
Monty Hall's Favorite Contestant
Posts: 760
Basically what happens is if the mission calls for a full away team of 5, those 5 slots will be first filled by grouped players. For example, say that you are grouped with one other person. The first two members of the away team will be you and the person you're grouped with. One of you will have the choice of bringing 2 of your BOs (Bridge Officers) with you and one of you will have the choice of bringing 1. Also, if you are playing solo and it's early in the game where you only have 1 BO, the remaining slots will be filled by generic Security Officers. Thus, you always have a full away team even if you can't find another player to group with.
As far as control of the "other CPU players", think Republic Commando. Tactical officers will bring the power, Engineers will keep your personal shields up, and Science officers will heal you. If you fall in combat and at least one of them survives, they will revive you. Also, you can revive them.