Camps (clans) have been around since the online leagues in Undisputed 09. A camp that would spar and improve the day of release and beyond. If you have the right guys to train and talk with, you could improve at a rate that blows 90% of the community out of the water. I remember the release of EA MMA where I did nothing but spar with Lemur, Fate, Mike, and other top guys in my camp. It was a blood bath. A week later I started playing ranked and went around 200-0 before my first loss.
Then there is a realistic camp aspect of it in leagues. We never had more that 10 guys, and we would spread out which weight classes we would fight at in leagues.