don't put in spys. If you do that then the game breaks down to paranoia. It's becasue of this kind of paranoia that I was assaulted at a Dollack game. (I'm not kidding. Physically attacked and assaulted by AN XO and a few other players at a team base while I was doing a routine mission.)
Want to make your players really mad? Let them get pasted in teh back of the head 5+ times point blank by a spy in a game. Think it'll never happen? I've seen it. Think that fist-fights only happen in pro ball? Try to seperate a VERY pissed off newbie from someone who doesn't understand what "ask for a surrender" means.
The other thing that pisses off players is the "poison gas" that kills 1/4 of the people out there. Seen that, and that made a lot of people REALLY mad. "I'm dead because I have a YELLOW dot and not a BLUE one? WTF?"
-Tyger
PS : If you want my TRUE feelings on what passes for "Scenario games", PGI will have to turn off the vulgarity filters and promise to protect my freedom of speech rights against possible lawsuits from a few scenario producers....