[Artur]

Andy,

With all respect if you cannot add an interface for the players to decide I suggest not to change the OP fire mechanism. Simply I cannot see how one can define an algorithm valid for even most of the situations. There are cases when it is appropriate to fire even at an unarmed jeep, and sometimes it is appropriate to fire only at the heavies. It always depends on the situation that is why user interaction would be so important...

Artur.