In general, however, the idea is that you don't have to be a person who knows the nuances of MMA organizations, or an armchair MMA strategist, to understand the gameplay of Bellator MMA Onslaught, as it's designed with simplicity and pick-up-and-play qualities in mind.
In the demo I saw, punches and kicks were mapped to one button each (left and right punch, left and right kick), and grappling maneuvers are mapped to the right stick, allowing you to reach out and then push the right stick in different directions to perform different holds, attempt to get out from a hold, etc. -- the technical stuff of MMA fighting, turned into a simple mechanic.
The version I played was considered early -- the TV-style UI was not yet present, and developer Kung Fu Factory and 345 had yet to even decide on all the mechanics to be included. The final game is due this summer.