I had to run with all eye candy off...
9600pro 128mb
1gig ram
3.4ghz intel
at 640x480 I would maintain about 30fps.
There are little hints at the top of the screen when the battle starts, but it seems like you can't adjust your controllers.
Like you have to tell your loader to reload, but hitting R
can have your driver go foreward with 1-4 and use 0 to tell him to stop.
odd set up, but it seems rather fun
