The Ace is nothing special. Sure it cost no fuel but it also costs you the rest of the games resources if you keep it alive. 9/10 times I've seen it in 2v2's they die in the first 3-5 minutes they're out. 2 Comets can take on a TA with ease. They're a little more of a shock in 1v1's but I haven't enjoyed COH2 1v1's since WFA came out.
You did enjoy the vanilla factions tho?
Cons spam/Maxim Spam into call ins
MG42 that didn't suppress, sniper dies when looking at it, Pzgren being trash, etc etc.