You have to activate Gatamatos then go into the cave below it and kill [npc=159610]. You can get [item=183121] by using [spell=311682] near the glass inside of the cave. When you return you'll have to complete 3 formations.
Currently the formation part of the quest is completely messed up, the Obedient Phalynx don't move into the correct locations to make any of the formations.
Pins are the quest’s own POI points from the current retail client, projected onto the in-game zone map. The game marks one blob as the quest’s turn-in; the rest are objective areas. Points that fall outside a map’s window are dropped rather than guessed at.
Quests whose map markers the client places closest to this one on Bastion, nearest first. Distances are straight lines between the markers.
Getting there
Flight points closest to the quest’s first objective area marker on Bastion:
Hero's Rest, BastionAlliance and Horde · about 320 yards south-west
Seat of Eternal Hymns, BastionAlliance and Horde · about 520 yards north-east
Straight-line distances in yards between the quest’s own map markers (QuestPOI) and the client’s flight-point positions (TaxiNodes); flight paths and terrain are not modelled.
Build history
First seen in build 12.0.7.68887 (Midnight patch 12.0.7, the oldest build in our datamine).
Steps, storylines and map placement from the client’s QuestLine, prerequisite and QuestPOI data; neighbouring quest text is Blizzard’s own (quest API), shortened to its opening sentences.
Achievements
Completing this quest counts toward this achievement.