pick up the crosman pump shotgun, its cheap, if you don't feel comfortable playing on the field with a bunch of full auto AEG's with the pump gun then you better stay away from expensive sniper rifles cause its the same deal. Shoot , scoot , evade , shoot....
When you can "snipe" with that then see about a bolt action. If you feel outgunned, its AEG time.
check for reveiws on youtube