I'm the solitary "gunman" player i guess... i like doom, doom2, wolf, quake and quake 2 and duke...etc..
the feeling of you against all the others is great.
That's why i played thry 3000 and more doom levels.. pure fun.
BUt on the other hand, being a part of a team in a sp game ain't that bad. Indeed, as someone said before, elite force sends the player on away missions with teammates. Ok so sometimes they run in front of your gun and i was really happy at one point i could go solo, but it was fun.
There should be a healthy balance. You should be able to guide teams (PLEASE I DONT WANNA BE AN ENSIGN OR CADET OR CORPORAL AGAIN!
and play some solo missions.
To make everybody happy (sorry if someone has mentioned this here, i'm running out of time).
DOn't expect unreal II to be unreal I.. why ? if you like unreal 1 that much, go play the game. Just open yourself for a new unreal experience.