I've been having a lot of trouble with in-game stability.
The game lags frequently (My internet connection is fine and I've dropped the graphics settings) and its become rather more difficult to find a server that isnt clan-run. Clan servers tend to play favorites with members who are basically allowed to do whatever they want (Spawn-camping and other basic forms of un-fair play).
Plus the AA capability of most of the game is sad bordering on pathetic. AA turrets can lock on to a ship from a good range, but the rockets themselves have poor guidance systems and arent effective at very long ranges. Add to that its impossible to tell if a craft has activated it's point defense system unless they're close (generally close enough to see you and smear you). The cannon on the AA turret is fair useless, unless you're up close and personal you cant make enough shots hit to cause real dammage.
Vehicles are seriously skewed. Tanks are weak and have no secondary weapon (The zoom feature is next to useless because unless you yourself are perfectly still AND your target is perfectly still, your chances of hitting it on the first go are slim) like the autocannon in BF2. Walkers are impossible to aim unless you're standing still and with the rockets, you couldnt hit the ground if you didnt have gravity. The three-seater rover's gun is only dangerous if you stand in front of it and shake your ass at it Braveheart style.
Gunships are immune to small-arms fire. This wouldnt be a problem if there were really effective AA capabilities in the game. Shoulder-fired rockets are far too slow and dont do enough dammage for the one hit you may get. Granted Engineers have a special AA weapon, but it takes a while to unlock it and Im not sure how capable it is. As I said before, AA turrents are next to useless so if you're in a gunship your only other serious threat is annother gunship.
There are serious balancing issues that need to be adressed about the vehicles.
