There seems to be no Sherman 76 (?)
The USA appears to be high in 'tactical flexibility'. The US infantry is good with all those abilities, and may be the best infantry in the game.
The Sherman is probably similar to the T-34/76 in terms of raw stats but it has those tactical options. The M36 Jackson looks like a paper armor, turreted version of the SU-85. Psquieh mentioned that it has 60 range.
The Sherman and Jackson are both pretty affordable tanks and are in the same price range as the Panzer IV and SU-85.
The 75mm M8 Gun Howie looks pretty neat and flexible as well. It's fast firing too..I saw it three shot a gren squad pretty quickly.
Nah, they wouldn't have shown it publicly if they didn't want us to know.
I'm a bit concerned though, it seems each new unit in these factions has multiple abilities and utilities, which makes the old ones look dull. Hopefully it's not too much the case. A Sherman Tank with 3 abilities is more interesting than a Panzer IV with none...
Doctrinal units not shown yet:
Assault Engineers
M10 TD (interesting, a call-in..)
105mm Bulldozer Sherman
Elite Tank Crews
M21 Mortar Halftrack
105mm Priest