hi you can create something similar to mode Phantom X in game Supreme Commander: Forged Alliance
Phantom X is a mod that throws 8 players into an uneasy alliance where 2 people are "phantoms". they have increased income, and secretly assignment to kill the other 6 players. thing is, no one knows who these people are, which causes mutual distrust, and unique games every time.
The objective of the innocents is to work out who the Phantoms are and kill them. Once all Phantoms have been killed then the innocents achieve an allied victory.
The objective of the Phantoms is to kill innocents players. How they achieve that is up to them, they can forge alliances with other players, make a temporary alliance with other phantoms, etc, or, play a low-key game and convince the innocents to attack each other under the pretence that they are Phantoms.
The true key to a Phantom game is diplomacy. Each player is free to make and break alliances at will. A true Phantom player will use diplomacy to create discord amongst the innocents and convince other players they are innocent.
Thanks
