I skipped a lot of the thread so apologies if someone has already mentioned it but the British Royal Artillery Concentration Barrage in conjunction with Anvil tactics needs to be looked at. It is capable of wiping and then destroying mortar/ISG teams in a single call-in in the fog. It also wipes (but not destroys?) artillery pieces in a single call-in, meaning unless you can build your artillery piece in the base sector you are basically unable to counter barrage mortar pits. It's a bit niche, but I've been seeing it increasingly often in 2v2, and sometimes with 3 british players using it in 3v3 to quickly destroy OKW trucks / barrage retreat points. I'd suggest removing its ability to strike in the FOW or at least removing the air burst shell component from it.