I am all in for that, but first let's make sure to NOT turn every match into a 25minute fight for fuel. Manpower points should be a good first step. Then we talk about modes.
If I could pick one, I would make a "zombie apocalypse" type thingy that you just fight an endless horde of Nazis/Allies and try to make the best score with buddies. Full of choke points etc.
I know there is a mod for that on COH2, but it's complicated because it requires another whole tech structure.
And a day later we get this:
Defensive missions in COH3.
Relic, if you want to copy my ideas at least pay me something. PM for my XMR address.