REDD4CK

So here i don't Understand. I start the battle in a War battle. I'm using US Army, its first capturing game at the start.. i'm with other player by a car capturing, and he Using PTRD (1945) Action Bolt Rifle.. so How it could be 🤔😆 then i asking him, and he say yes it is PTRD i just Howw ? Can anyone tell me how to do that? Weapon PTRD 1945 Russian Army can Transfered to US Army?