I love the way on Crossing in the woods you can stealth-steal OKW flak defenses on the north spawn by throwing a satchel over the hedge and then vaulting after it :romoeMug:
But in all seriousness this is possibly an L2P issue.
And please Relic please, make it so they have zero chance to shoot down planes.
Don't increase the cost of the tanks increase the cost of the tech! Make nades have to be teched as well as the medics and pioneer repairers etc. And tie the KT to CPs!