TBL/Zones/stratos/Fight Fire/steps/Step 1
Mobs are on Servants of Aalishai faction. Non-kos faction will make the mission a a good clip easier to split with pulling tools like harmony or lull.
There are 2 waves of spawns, the first wave is already popped but inactive at the start of the mission. In order to activate the mobs, hail one and follow the dialog. Once you say battle the mobs will activate. It is best to activate with one person with good faction standing if possible, they are easily faded if not.
When the first wave of 7 mobs dies, 5 more will spawn on the bridge and move into place, you can aggro them ahead of time, but it is just as easy to pull and split after they walk into place.