The Air Assault game mode is now up on the BF1 CTE. I don't normally fly because I have a tendency to crash into things, but I wanted to check it out. Looks like there are two modes: one strictly dog fighting and the other where you try to shoot down the opposing team's airship behemoths. In the second mode you can spawn into the airships so if you want to get revenge on all the pilots that bomb and strafe you, this is where to do it.