Jagged Alliance: Deadly Games
 

The challenge is this: kill everyone in the roster. It is very difficult to do because as the body count rises, less people will want to join your team. I think if you can figure out who is most likely to be afraid you can kill them first. I also tried winning a few missions so people wouldn't be afraid anymore. By this point though everyone was a complete newb. So, I actually suck at this challenge. I've killed like 1/3 of the roster MAX. Pooey...

been there done that
 

back when I was playing it I killed the whole roster unintentionally. didnt lose my last one till toward the end of the game. Irritated me at the time cause I had to start from a real early save.:)