Nah, it's way more interesting without one, and you don't have to fend of gun 'totin new spawns right from the start. Besides, it's easy, too easy even, to get your hands on weapons
Well, practically everyone I've met have been shooting at me.. even though I've never instigated a fire fight. Don't get me wrong, I love it, even though I die, a lot... However, I can't but wonder where those famed friendlies are at :P