Than how about MOW2: Assualt squad? Compared a traditional RTS with a F2P game (War Thunder) is not really fitting?
MOW2 didn't even made it to top 100, which judging by current last place means that MOW2 have LESS players then 750 daily(which isn't surprising, because its not a good RTS, but annoying trench warfare simulator with some vehicles), meanwhile CoH2 averages 2200.
Why we have such a poor multiplayer then you ask?
Because 80% of them play comp stomps and the 80% of remaining 20% play germans making for extremely unequal battles where you are much more likely to face good soviet player then good german player.