Down time ought to be limited to in country structures. As for m3 re-supply, I agree in principle with it, I however think the scope of it needs to be limited. One M3 re-supping 70+ objects inhibits combat. Why up to kill attackers when you can just bring m3's to re-sup.
1. One M3 one object, maybe increase it 20 mins from 10.
2. If it takes me 30 seconds to rearm a plane it ought to take the same amount if time to rearm a GV. Such endeavor ought to render the re-arming GV helpless furring that period of time.
3. Battle damage, turret, track, ect. To repair such damage should take a lengthier stretch of time and be limited to one per sortie. nothing more annoying then turreting the same Wirb 5 times in 2 minutes.