Firstly, Hi WayUndertheMountain and welcome for your opinion, you missed this the first time round, IMO the only good uruk-hai are Mordor Uruk-hai
you've even admitted that you don't have knowledge of the source material
No, I said I don't have extensive knowledge of the supplemental material such as unfinished tales and the histories of middle earth, I am quite well versed in the core sources.
I have, however, finally found something on my own that suggests it. In Cirith Ungol, one of the Orcs makes a reference to rebel Uruk-Hai. Not terribly likely that any of Sauruman's troops are lurking about on the borders of Mordor so I will take that as sufficient evidence of the existence of Mordor Uruk-Hai.
Its still a pretty obscure reference so I don't know why so many people were so sure, and I really don't know why NO ONE, on 3 different forums, in several different threads, over the course of about 2 years, EVER provided ANY evidence to support the statement.
But I am content now and shall be silent on the subject.
I am glad you are content but there are more than just one obscure reference. If yo want to know Sauron employed Mordor Uruk-hai before Saruman was even evil
However, the Uruk-hai did not remain exclusively in Sauron's service
Uruk-hai is Black Speech;
The name given by Sauron...
AndI just want to bring a little attention =towards this battle, it suggest that Mordor Uruk-hai were not unbeatable, but shows they took part in a battle, in an army composed entirely or almost entirely of Mordor Uruk-hai (they also appeared in Cirith Ungol and at the Battle of Pelennor Fields):
They first appeared in 2475 Third Age, when a strong force attacked the outposts of Ithilien and captured Osgiliath; this army was later drivn out by Boromir, son of Ruling Steward Denethor I