The only thing they did wrong in the online dept, was not adding a way to search by region to be matched with players from the same region as yourself.
UAV overpowered? Since when? You can shoot it down with ease...
I'll agree that the spawns on certain maps are nowhere near how they should be. (CTF, spawning near the enemy flag, any game mode spawning near or right next to an enemy etc).
I think those are issues they'll iron out fast but the lag is something we're stuck with untill they decide to bring back region based matchmaking.