Combine this map with emp_rainbowroad and let the team win that has pushed all enemy CVs of the map first.
Even so, one of the win conditions is if a single CV is destroyed. If you kill even one of those, the round ends.
hahaha yeah this could work as a map. basically, each team starts with a jeep spawner and about a dozen CVs all parked near the edge of a giant disk. you have to stop the enemy ramming any of your CVs off, while trying to take theirs out... haha that's be so good.