The issue of larger teamgames is not the caches, it's the amount of standard territory points on most maps.
For example if you hold half of the map on General Mud, you earn like +40 fuel and +60 ammo, which equals an entire 1v1 map. Because of the huge amount of standard sectors that is.
Larger maps need more territory points, but IMO the ressource income per sector should be reduced in larger teamgames
