I think a large problem with cavs is that BAR rifles just kinda do everything. They're CQC oriented, but also perform very well at max range. Doesn't really leave room for much else when you can just buy more rifles. On top of that 2 thompsons and 3 grease guns are pretty underwhelming in comparison to 2x BARs or rangers/paras 4x thompsons. Yeah they're cheesey as hell in the WC51, but I think that's more of a truck issue than anything.
For 1v1, Soviets on the back burner and OST in its worst state in a long time. Sounds accurate to me. I know who said this though, and the context was 2v2.