I'm not saying most of these are huge, but I figured I'd point 'em out, and they're probably some of the easiest things to fix:
Firing the Gats Bronze, Silver, Gold
Kill 10 enemies with a heavy, light, or tank mg
>> MG. It's an abbreviation
Soviet Campaign 3
Soviet Campaign 5
>> #4 appears out of order in the list.
Kill 10 enemies with a heavy, light, or tank mg
>> MG. It's an abbreviation
Exemplary Service
Receive a in game promotion
>> in-gameReceive a in game promotion
Soviet Campaign 3
Soviet Campaign 5
>> #4 appears out of order in the list.
Stonewall
Complete two different defense missions while successfully completing the map without loosing the first objective
>> losing. Should this be "maps" instead?Complete two different defense missions while successfully completing the map without loosing the first objective
Marksman Bronze, Silver, Gold
Obtain a kill over 100 meters with a bolt action rifle
>> bolt-action, but no one writes it that way.Obtain a kill over 100 meters with a bolt action rifle
Tank Gunnery Bronze, Silver, Gold
Destroy an enemy tank at 900 meters with your tanks main gun as gunner
>> tank's. But it also sounds like your main gun needs to be playing as gunner. Rewrite to "As gunner, destroy an enemy tank at XXXX meters with your tank's main gun"Destroy an enemy tank at 900 meters with your tanks main gun as gunner