Help with playergroups.

Hey.
I would just like to know if there is a way for a player to have enemy units. I mean, beeing neutral too one player, but still have enemy units from that force. Perhaps I'm not making myself very clear, let me explain a bit further.

Say there are two players. Player 1 and 2. They are neutral too eachother. Then just one unit from player 2 attacks a unit from player one. Then I want the whole force of player 1 to be the enemy of that single unit from player 2, but still beeing neutral to player 2 (force)

Thank you,

~Operator

Something like that would be possible if you gave that unit to player 3 who has full shared unit control with player 2 but is an enemy of player 1.

But nothing besides that ?

Not unless you wrote your own unit aggro system or something.