Just to complete this page:
Make your way to Fungal Forest via Pellucid Grotto 0/1 (Fungal Forest) - Updates as you zone into Fungal Forest from Pellucid Grotto
Locate the first squad training area 0/1 (Fungal Forest) - Updates at the loc: +30, +1900, +290. As soon as you get this task update, 2 "an autarchian agent" spawn. They are bellikos mobs, snareable, mezzable. They summon but have less HPs than regular mobs in this zone.
Kill the autarchian agents 0/2 (Fungal Forest) - Pretty obvious
Locate the second squad training area 0/1 (Fungal Forest) - You will find "a trainee squad leader" at loc: +24, +1317, +273
Tell the surviving squad leader to report to Tareg 0/1 (Fungal Forest) - Hailing "a trainee squad leader" results in 3 "an autarchian agent" spawning.
a trainee squad leader says 'They came out of the shadows and hit us without warning! We barely had a chance to defend ourselves...oh no, they're back!'
Kill the autarchian agents 0/3 (Fungal Forest) - Again, pretty obvious
Locate the third squad training area 0/1 (Fungal Forest) - The third squad is at loc: +660, +1364, +238. As soon as you walk up to the location, 2 more "an autarchian agent" spawn.
Kill the autarchian agents 0/2 (Fungal Forest) - You figure it out
Report the status of the guard trainees to Tareg 0/1 (Kernagir) - Duh, winning