I haven't done it yet, but I wanted to know the mods and what was in store. Maybe it's useful to others. Update: Just completed it! It was my 33 Hunter, a 33 titan and a 34 Hunter. Everything was pretty simple, and nothing caused major headaches. I used an arc shotgun for fallen, but always kept my Gally on. The servitor majors are bullet sponges, so "team shoot" them. Crazy fun. It took an hour and 20 minutes. Round one: Hive. It has exposure (shields increased, but don't replenish) and brawler (melee increased). Round two: Vex with destroy mines. It has grounded (take more damage in the air) and airborne (deal more damage in the air). Round three: Cabal with diffuse mines. It has arc burn and catapult (grenade energy increased). Round four: Supposedly the hardest, this is Fallen with kill targets as the objective. It has Specialist (special weapon damage increase) and Juggler. Round five: Fallen again with a servitor boss. It doesn't have a objective alongside it to my knowledge, but correct me if I'm wrong. It has Trickle (recharge for all abilities decreased) and Small arms (primary weapon damage increase.) Round six: Skolas! It's fallen, obviously, with diffuse mines as the objective. It has solar burn only, to my knowledge.