It is very frustrating to play as the defenders if you completely own the map and you still have to wait the 20 - 30 mins. This is why I thought of a system to make it better:
Make some time bonuses on objectives.
For example:
Fuel dump:
Allies have 10 minutes time.
Destruction of the tunnel door: +10 mins
Destruction of the corner (the place where the tank finally stops) +5 mins
Oasis:
Base time 10 minutes
Destruction of the old city wall +10mins
Destruction of a gun +5mins
Radar:
Base time 10 minutes
Destruction of side door +5min
Destruction of main door +5min
And so on…


