I see the option in the user control panel for american english..
But with that set, nothing is in english.

The first forum does show it has ENG versions available, which I will try, but nothing is really explained past a base version. eg: no idea how to mod further.

And sadly the forum is not compatible with google translate. Would be awesome if you guys could work on fixing that. (I'm sure some version of MyBB should be compatible with the full blown google translate)

Well not fully. Trying to read the whole forum with it does not work on chrome, but I can use the extension to partial select text and get bit by bit. Not very fun and inefficient ,since if I select any text with numbers / emoticons / images, it fails to load any translation.

The english https://heroes3wog.net/ site is good.. But very incomplete.

EG: Very hard to a find a full list of mods compatible with their distrubituons of ERA2 or ERA3...

Can find mods, but they are often incompatible. Get so many errors / crashes no matter what I try, so a forum to aid would be helpful.. But this is the only one lined and seems only russian?