Shadow-Stalker Nauthis wants you to take use the Mental Interference Rod on the Mo'arg at Forge Base: Gehenna and use their Detonate Teleporter ability on the three teleporters in the forge camp.
1x Western Teleporter Destroyed
1x Central Teleporter Destroyed
1x Eastern Teleporter Destroyed
As fun as killing demons might be, it does us little good when the Legion can keep using its teleporters to replace anything we kill.
Unfortunately, I don't have any high-powered explosives handy... but the mo'arg that maintain the teleporters do.
Take this rod... I've tuned its powers to interfere with mo'arg brain frequencies. Return to Forge Base: Gehenna and use it on any Mo'arg you see. You won't have long, but you'll be able to use their demolition charges on the nearby teleporters.