The regular stock Sherman of teh USF is an alround tank at a modest price but seems to be outshined by all other main battle tanks. Its smoe ability, different kinds of ammo and great veterancy make it a diverse but little used tank. it seems to have to little speed nor the armour let alone the penetration to deal well with other tnkas. Additionally its HE shells are underwelming making it an below average anti infantry tank.
Perhaps improving the tanks speed, turning speed, turret rotation speed etc. help it to become on par with the main battle tanks of other factions. Perhaps at a small fuel cost increase. The sherman was such a prominent tank for the allies, its a shame that it (in its basic form) is so under used and outclassed by the other tanks.