I want to request to introduce new special side in ArmA 3 that will allow players of this side be enemies to each other (get positive score for killing) and be able to get into same vehicles. More and more gamemodes aim for free for all play instead of classic BLUFOR vs OPFOR vs Independent and this new side will solve all the problems with letting players engage each other as well as to form sporadic alliances with each other.
sideEnemy is not a solution to the problem because renegade players cannot get into same vehicles by normal means.
Since sideFFA will probably be "virtual" side and createGroup will not work with it, we will need a new scripting command to move unit into FFA state and out, I suggest the following syntax:
<unit> setFFA <state>
<unit> - Object
<state> - Boolean
This addition will enable such game modes as Wasteland or DayZ-like missions where players go by themselves to kill each other and get positive score for it yet be able to team up and use same vehicles.