I don't see what the big deal is about Spawn Camping (not that I personally do it; I get bored)...it seems like it's easy enough to avoid death when you spawn, and if anyone stays in one spot for too long in this game, they're dead.
And if you think Shotguns are for losers, you clearly don't know how to handle people that use them. Sure, they're annoying in close-quarters, but put only a few feet between you and them and fire your gun as you move backwards...they'll try to close the gap, their gun will be useless, and you'll kill them every time.