hm, doesn't make sense when you aim at a helicopter and hit a tank below it, the game should have something for that, like press space so the 'head' of the tripod goes down and can damage ground and press space again to lift it back up for air.
1) kupo i have major respect for you making these good games for FREE
2) i really loved EBF3 and never thougt EBF4 would be so much better.
3) keep on making these games ;)