Spymaster Thalodien at Area 52 wants you to go to Manaforge B'naar and slay 2 Sunfury Warp-Masters, 6 Sunfury Warp-Engineers and 8 Sunfury Geologists. Completing quests for the Scryers will cause your Aldor reputation level to decrease.
Based on the roster information, we know that the brains of the manaforge operations are the warp-masters and warp-engineers. It is they who oversee the retrieval of a so called "warp-energy" by the manaforge and its delivery to a remote destination via a system of underground pipes.
The only other specialists in the area are geologists. Everyone else is either part of the military or a magister crony; both easily replaced.
Get in there and kill Kael's specialists; that's what'll hurt him the most.