1. A casual stress free run and gun PvE mode for those who just want to squeeze in a few games before bed on a work night with a couple of beers. If you play horribly, it wouldn’t effect your teammates any.
2. A die hard, try hard competitive Firefight where one player’s short comings could eff it up for the whole team. Team work for survival is a must. Bring your A game and your best REQs.
3. Solo Score Attack. Play how you want by yourself, use REQs, earn REQs. Gruntpocalypse anyone?