The description of the Grimrail Depot dungeon is that it is bringing armament to destroy Shattrath's shield. Is that happening before or after its occupied by the Sargerai?
I do believe Grimrail is a lvl 100 only dungeon and iirc, the dungeon's levels indicate when in time the dungeon takes place. Hence Auchindoun and Skyreach being unlocked at same levels as their questing zones.
Nitrogg Thundertower – With a zeal for flame and explosives, Nitrogg was a natural fit in the mechanized and weaponized army that Garrosh's plans brought to Draenor, and he has risen quickly through the Iron Horde. He oversees the artillery on the Grimrail, and is eager to break through the defenses around Shattrath and conquer the enemies of the Iron Horde within.
Also, on the Operator Thogar encounter the description reads: "Known more for his cruelty and cleverness than for brute strength, Thogar oversees the operation of the Grimrail. From the Foundry’s depot, he coordinates the ongoing ground battle against the draenei in Talador, with entire battalions of troops and artillery at his beck and call."
I thought the Iron Horde was completely driven out of Talador except for their one outpost on Grom'kar?
Are these just lore inconsistencies or is there more going on behind the scenes?