Board Thread:Suggestions forum/@comment-35882411-20181213215227/@comment-25012056-20181219111118

Hûkrag wrote: Udun wasn't the fieriest of places, that would be gorgoroth, or more specifically, Orodruin. Also YES we require Orc Grog.

Also I'm pretty sure the orcs just met up at war camps and march out at the rare times when the Black Gate was opened.

"Rare" isn't the word I would use. The thing with the Gate wasn't that it never opened, it's that it was effectively impossible to pass when it was open. It opened to take in Mannish allies or send out scouting parties on a fairly frequent basis, sometimes multiple times a day.

Udûn itself was constantly garrisoned; the Black Gate, Carach Angren, and Durthang all had their own (fairly massive) garrisons, and the rest of the valley was pretty much a 24/7 rally camp. Sauron was constantly taking allied armies in through the Gate and sending armies of his own out into Ithilien or the Wastes, and all of those Men and Orcs were housed in Udûn, where many more were gathered in wait for major attacks in which they would all be needed. The thing is that they were only all needed twice, and so they weren't seen too much in the lore.

Gen. Grievous1138 (LOTR Mod Wiki Admin) comlink 11:11, December 19, 2018 (UTC)