as someone who is in the top 50 4v4 for like 4 months, you are so wrong...
people don't use CAS, stuka loiters are also very rare.
same thing about crocodiles, brits normally go for air supremacy or arty cover.
axis is always spamming MG/mortars(leigs) then rush WM T4/stug spam and OKW goes for panthers and KT.
and in some open maps like hill 400 and steppes shit like AAHT is also used (and the thing is damn near impossible to take out before flaktruck arrive) effectively closing a big chunk of the map.
OKW lefhs are also widely used. and the thing is a direct counter to katyushas.
also, sniper spam on both sides are really effective now that all light vehicles are shit against snipers.
That was why I posed the question, there is no real meta. I also agree with zerocoh, Mr. Smiths' list of OP units is very far out of whack and seems outdated.
The people who plan a strategy, employ that strategy and work as a team will typically prevail. The majority of people playing 4s aren't even playing with a set team let alone voice comm. There are many ways to win in team games and certainly there is no meta.
The game is designed around 1v1 and that can not be forgotten. There are ways to improve team games without changing the values of certain units you deem too OP for 4v4. You can improve these modes by tweaking things like map design, unit and ability totals without disturbing the core of the game.