A game mode called Frat Wars, where two frats go head to head in either a Survivor or a Big Brother game. The Frat Leader would be able to chose who gets to play, and based on their placements, add Karma to their Frat.
This would essentially make Frats be able to level up like we do by ourselves, except as a group. This would make frats be well, less irrelevant and actually fun and meaningful.
Also, have there be a leader board within the Frats to show who has given the frat more points.
The game shouldn't end until either:
-A Frat is taken out completely, thus giving each member remaining of the winning frat, lets say 5 Karma towards their frat
-OR until one person remains out of everyone, and they get to add more points to their Frat than the others.