Spire Open the door. There are 3 zones one to the left, the right and directly below the big door. The objective is to activate and defend all 3 zones at once to raise a spire with a lazer that shoots and activates the door. Put 2 people on each of the three circles. The mid two can help the sides when needed. You DON’T have to stay in the circle once it’s up. But at least one should stay in close vicinity and keep the vex out. The Praetorians are the biggest problem. Call them out and use the proper weapon for the shield. STRATEGY: Divide your fireteam into 3 equal groups of 2 – higher level with a lower level. When you are ready clear out the starting vex and move into position around the zones. When all 3 groups are ready step into the zones until a big white barrier appears, if all 3 zones are activated you will see a message “the spire is forming”. Now comes the difficult part. Groups of vex will spawn from 2 locations at each zone. There will be a very difficult Minotaur or about 3 hobgoblins and 3 goblins. Minotaur is pretty difficult to defeat. Use fusion rifles with void damage to take down its shield, than finish him off with a heavy weapon. The groups of hobgoblins and goblins aren’t very hard to kill. If the vex enter the zone you will lose control and the progress on your spire will degrade. YOU DO NOT NEED TO STAND IN THE ZONE TO KEEP CONTROL. All you have to do is capture it once and you can freely leave but you must keep the vex out. If you manage to kill enough waves of vex until the spire is formed, you’ll be able to enter the vault of Glass! Enter the raid and continue forward to find a chest with your reward.