if a player does not control any zone he should start bleeding "kill points" to his opponent.
I think this could work for for every game mode. I lost my Wargame Cup match due my bad play and good play from AgroQ. But at the end I got big map control and AgroQ got only one CV running to the hills to hide. Even I sucked there and lost crusial points, I manage to keep my three CV's alive and in zones but that didn't help me at all. (Yea, I know. This is whining - but what else you can do when you lose your match
So, even timed games, if you don't control any zones, you start to leak points to opponent. This might work.