Phase 3: Singing Wiz in a crystal. As soon as you get in the room, you have a limited time (between 2:30 / 3 minutes as soon as you shoot an enemy or a friend receives damage) to kill her otherwise she'll sing and kill the team. There are 2 shriekers (each side of the area) with a wizard by each. Kill the wizards first. Kill the shriekers. Pound the crystal wizard. So split into 2 groups. Each group will take cover in a position on platforms on each side of the room. Kill 2 knights. Each group runs directly to its side and takes the stairs. Dont mind mobs or knights on the ground. When you reach the top of the stairs, reverse and jump in those high vantage point rooms. Left side draws more mobs, so the right groups help. While cleaning is happening, one guy on each side has to go lurk a wizard out. Just go halfway in the room and go back to the high vantage point. Watch out for the knights that will spawn along the wizards. When the wizards on both sides are dead, clean the remaining knights. Then move closer to the shrieker room on both sides. Have a First group destroy its shrieker and immediately go back and join the other group. Nevermind the mobs around the first shrieker, fire 1 or 2 rockets and go. Have 4 of you simply kill mobs outside the room. The 2 remaining guardians kill the 2nd shrieker FROM THE OUTSIDE to avoid losing 3 dudes from its death stuff. When you kill the last shrieker, the countdown starts. Everyone should go in with rockets and fire in the hole. 3 of you need to clear a line of sight on the wizard and shoot from a good distance. The other 2 mob wipe with heavy and then take her. As soon as she is dead, fall back to safe position and clear the room. Phase 4: Crota's End Crota disables your regen and locks tou in the crystal room for a few seconds. So be very carefull about your health when the barrier goes down. You will need two things to get this step done : The cup of whatever which is the only way for you to get your health back. It's located in a glowing plate in the main area and needs to go from guardian to guardian to heal them (FYI : Red Death ability to heal on kills still works as another healing method) The sword (again) as it is the only thing that can hurt Crota. You'll find it on sword bearers dead body. Crota will launch a very annoying attack (The Oversoul) whenever someone dies. He will summon his immortal soul (a huge white thingy, can't miss it) that you need to destroy in time or you will wipe. This oversoul is easily destroyable but will need the entire team to focus on it using high DPS high Range weapon : Again, Ice breaker is your go to weapon as it is also efficient against the sword bearer and useful to get rid of the knights on the upper platform. (Those knights will respawn every 15 seconds) You will also encounter Ogres that will spawn along every 2 or 3 swordbearers. They must die. You need to drop Crota's shield so that the sword guardian can chop off his life. Having a level 31 guardian at the sword seems to be almost a prerequisite to kill Crota. If you take too long to kill him, he'll go berserk with his Oversoul and that is pretty much the end of you. So the extra DPS with the sword wielded by a 31 is VERY good to have. Strategy for Crota: Sniper team: This team of two stands at the left and right exits of the hallways that lead out of the crystal rooms. There job is to shoot Knights that spawn on the right and left balconies during the encounter. Adds do not spawn behind them. They must make sure the knights are killed so that the Swordbearer is free from worry when he's hitting Crota. DPS Team: This team of three sits at the doorway of the hallway below the crystal room (where the encounter begins). The job for this team is to kill the Sword-bearing Knight and to drop Crota's shield so that your Sword Bearer can do damage to him. It's important that this team communicates to the Sword Bearer what damage is dealt to Crota's shield in order for your Sword Bearer to time when they attack Crota to both maximize damage and avoid dying from attacking while his shield is up. Sword Bearer: The Sword Bearer has the onus on them for dealing the killing blows to Crota. They should collect the chalice, and deal hits on Crota when his shield is down. It's much easier said than done. The Encounter Step One: Clear the Crystal Room All six guardians must surround the crystal in the starting room in order to begin the encounter. This will trigger glass panes to cover the left and right exits of the room. Position your fireteam so that you're prepared to kill the acolytes and knights at the exits and focus on minimizing damage taken. Step Two: Take Position Once the adds are dead your Sniper Team of two should get into position at the left and right exits and begin killing the Knights on the balconies. Your DPS team should head down to the hallway below the Crystal room and your Sword Bearer should go pick up the Chalice. Step Three: Kill the Sword-Bearing Knight The Sword Bearer on your team then gets Aggro from the Sword-Bearing Knight and kites them down to your DPS team who is in position to kill him and the thralls that will be chasing your Sword Bearer. Step Four: Downing Crota Once the Sword Bearer has grabbed the sword off of the dead knight, your DPS team should begin shooting Crota. They must keep DPS up the entire time they're downing his shield or else Crota will almost immediately regain his shield. While doing damage this team should be giving call-outs that sound like, "Health at 90%, 75%, 50%, 25%... etc." Step Five: Damaging Crota While the DPS Team is doing damage on Crota and communicating shield percentages, your Sword Bearer is running through the middle lower section, jumping onto the platform beneath the center, and preparing to leap up onto the walkway in order to deal damage on Crota with the sword. If timed perfectly, the Sword Bearer should be able to hit Crota with three consequite RT (or playstation equivalent) before Sword dashing back to the platform below that they used to get up on the walkway. Step Six: Damaging Crota Pt. 2 Assuming that Crota was brought down efficiently, you will need to maximize the time the Sword Bearer spends with the sword in order to down Crota a second time. So-- once the Sword Bearer has safely dropped back to the platform below the DPS team is ready to hit Crota again. The timing for this is crucial. Crota will have an invulnerability period after being downed once, he will appear orange in color and be invulnerable, once he returns to his normal color, the DPS team must hit him hard while communicating damage percentages to the Sword Bearer. Again--the Sword Bearer will have to time this right in order to begin maximizing damage on Crota while he is down before the sword disappears. Step Seven: Rinse and Repeat You will do the above two steps again in their entirety. That means Snipers are sniping Knights. Sword Bearer is kiting the Sword-Bearing Knight to the DPS team to kill. The DPS team then Downs Crota for the Sword Bearer to do damage the first time and then a quickly a second time for the Sword Bearer to get back to damaging Crota. Step Eight: Meet up with the DPS Team After the Sword has been carried twice everyone will meet in the hallway below the Crystal Room. Step Nine: Kill the Ogre's Two yellow-health Ogre's will spawn after the sword is carried twice. Your team of six should be in the hallway below ready with Weapons of Light and heavy fire power to destroy them quickly. It is helpful if one guardian can Kite them towards the steps to the hallway below the Crystal room in order for your team to destroy them quickly. Caution: Crota will be on the walkway above you and can kill you easily, so pay attention to that fact and stay hidden in the doorway to do damage on the Ogre's without dying. Death=wipe. It's also important in this phase that your team juggles around the Chalice, because most likely your Sniper team will need health as they've been away from it for the entire encounter up until this point. Step Ten: Return to Positions After the Ogre's have been killed the Snipers need to get back to their positions, it's helpful to call out which side Crota is on, both Snipers should go the opposite way, the Sniper who had their path blocked can run through the Crystal room to get back into position on their side. Step Eleven: Segment Two of Downing Crota After the Ogre's are killed and your team is back into position you begin the cycle again. This means downing Crota twice per Sword wielding and Carrying the Sword Twice before the Ogre's return.