SO...I have a new idea...when in an operation, the abandoned tanks of our side can be recovered IF ONLY we win the battle, if we are removed from the region, how can we get back the malfunctioning one back for repair? It WOULD be more realistic is the tanks become captured if we lose the battle. At least not regaining them.
I am sorry, like MikeyD, I play almost battles, forgive me for not knowing the operation mechanism...