I have found some issues that are frustrating in the campaign.
Immobilized or damaged vehicles are not repaired in later battles, example damaged tires or main guns
Units begin battles black on ammo
One man units, minimum size of a unit in the army is a buddy team, can stragglers be added to other units to fill them out
bridges are difficult to maneuver around
Great game really the first 2 issues are the really annoying ones been playing since 2003.