It will be awesome to add MMA into the game, players who are rich can organize a community to hold fighting arenas, others can train in the gym and fight their way to get their championship belt and earn money from the organizations. Perhaps managers can be add to the games too, so they can sign up fighters. Girls can be the models, they too need to hit the gym and get into great shape and earn money for the fight clubs they work for. The organization can find sponsors donate money to them, and helping them to advertise their brand, so that both can gain advantage.