From my experience in BC2 and BF3, this series isn't very nice to new players who start late or don't play very much. The jet is absolutely defenseless and useless until you get IR flairs and heat seekers. As a noob in a jet, all you can do is fly around and try to machine-gun something and get points so you can get closer to IR flairs before someone sends a heat seeker at you which you can't dodge b/c you don't have flairs yet. As a noob, it's also near impossible to shoot down anything with just the machine gun. Choppers take multiple passes to kill usually, and other jets will usually get away from you before you're done killing them. On the ground, your starting weapons are near useless. I played CO-OP and unlocked all the weapons there thinking it'd be a bit easier to play if I had some other weapons, but most of the CO-OP guns don't help very much. You've got to play and earn a few levels the classes/vehicles before you can really be competitive in this game. Plus, knowing the map layout and the common hiding spots helps. If you're annoyed at spawn killing, play rush.