If you were camping then that is probably why you didn't get anything, however if you were in the fray the entire time being epic you should've gotten some nice loot. A long time ago (perhaps in a podcast) they stated how their loot system worked. It was related to accomplishments, so if you failed the entire match and had a moment of glory at the end (or at any point that would be noticeable) you would get loot. It happens quite often to me, so I've gotten a lot of helmets, engrams, two shaders (Beowulf and Achilles), and a maverick mk.41. (By accomplishments I mean you are practically destined [u]not[/u] to receive loot if your performance is a repetitive cycle such as camping.)