Give some sort of special forces to each team....like army pathfinders.
Give us HQ upgrades, like from a occupied house to a concrete bunker.
Give both teams a bunker from which to mount AT guns
allow more things to be built on territory capture points, like a barracks or a oversized bunker.
add new doctrines to each side. French resistance doctrine for allies (sabatoge and gurilla warfare doctrine) and ost battalion doctrine for germans (cheap massed infrantry doctrine).