OKW and ost lack a lategame spamable allrounder tank.
Panther is good vs armor, but lack good AI, when you spam panthers, you stay there with 3 of them and try to kill one AT gun or ptras penals for ages.
you can spam p4 as okw..which lack HP and range and are eaten by anything lategame.
ost can build brumbars, which let you struggle vs any kind of lategame armor.
while all allies running around with their allrounder tanks Comets, T34-85 and Easy8. and demolish everything in their path, when be spammed.
Panther has solid AI, especially if you Sit on them. All pintles ramp rapidly with range, so just sit on top of the AT gun and it will die. Or get a SZF. You know. The non-doc anti-blob tool.
OKW P4s are AMAZING, with massive initial armor that can bounce M36 shots and that classic P4 gun, which has best-in-class AI and AT. WITH either a pintle or doctrinal commander. Jesus.
Brumbars annihilate infantry and team weapons... what's the problem?
What all-rounder tanks? All 3 of those get spanked by Panthers and Tigers. 2 Vet 1 E8s are needed to kill 1 Panther and they have very similar AI due to a quirk of how AI AoE works, the T-34/85 is pretty much a P4J with health instead of armor (thats why its SO GOOD). Comet comes super late, and lost much of its AI bleed in a previous patch. It has Cromwell grade AI.
Just.... build Panthers late game. Maybe pick a commander with Tank Commander so you can artillery AT guns.
And everyone loses if fuel starved. Period. Its a reason I prefer 3v3, it has the highest rate of safe Fuels in the game.