Flying over and capping is possible, but you still have to wait for a period of time to cap it, during which you're wide open for attack.
Each territory has a large block of land associated with it. ***When it's unoccupied, that area is gray. ***Within the large area is a flag marker and a smaller black area. ***This is the portion of the territory that you have to occupy in order to capture the territory.
If the territory is empty, then you can contest it. ***During this period of time, the larger gray marker turns yellow to indicate that it is contested. ***You have to contest it for at least 30 seconds in order to take control. ***After that, if an enemy wants to take the territory from you, they must have more troops on that area than your team does in order to begin the process of taking away control. ***If they manage to keep more troops there, or wipe out opposition, then they have to stay there for at least 60 seconds. ***Then the territory is taken away from whoever was holding it before and put into contest mode for the attackers. ***Then they have to hold it for an additional 30 seconds. ***If during that time the enemy comes and brings more troops, then they could start contesting it for themselves.
So, while you can take a chopper and take over a territory, it isn't so easy as zooming over and having it. ***You have to wait, and if there are any enemies on the ground, then it's harder to find them and eliminate them so you can take the territory back.
I'm working on making the AI guarding it a bit smarter, but unfortunately, during an MP game, the lag makes them quite dumb in a lot of ways. ***I may reduce their numbers and simply place a couple of them with SAM's or something. ***Their main goal is to slow down any attacker long enough to get reinforcements there.
I'm also working on a way so that in order to take any territory, any adjacent territory must first either be unoccupied or controlled by your team. ***That way you can't just fly into the middle of enemy territory and snag territories. ***I think this will make the land game a lot more interesting.
One question, do you think there are enough territories right now, and what do you think of their placement?