im really REALLY bad at this game. but i would say if i am allowed to hang around close quarters areas, im ok. think the best game i played was on boneyard, camping in the multi story building. pistol/needle rifle, jetpack. harass with needle rifle from the distance, shift around and let them come to me, then drop their shields with a melee/pistol, and finish em off with whatever is situationally better to use. since my aim is bad, i prefer using the pistol at a closer range than dicking around with the rifle at longer range. play to your strengths right?
also, having ghost riding faggots running you over gets old so damn fast. BUT THATS WHY GOD INVENTED THE ARMOR LOCK, FAGGOT GHOST RIDER WANTING TO MAKE YOU ROAD KILL, PUNCH THAT ARMOR LOCK AND LIVE, OR EVEN HAVE THEM CRASH INTO YOU BLOWING THEMSELVES UP, ITS BEYOND FUCKING AWESOME AND CAPS LOCK IS RELEVANT. seriously though, if there's ghosts on the map, im using armor lock or jetpack.
so far, my favorite multiplayer is big team slayer on spire. friend of mine camps the helicoptor, i jump in one of the turrets, camp the top of the spire, free kills for me, free wheelman streaks for just driving for him, lots of fun.