The Uruk-Hai elite

As Saruman's Uruk-Hai force began to take shape, his Uruk-Hai proved themselves amazing warriors, capable of mass destruction and built for genocide. With this immense army, Saruman calculated that after he wiped out Rohan, captured the Halflings and the one ring, he would invade Mordor to claim his rightful place as ruler of Middle-Earth. He calculated that Rohan could possibly take a toll on his fighting Uruk-Hai, therefore, he set aside the strongest, coldest, most calculating Uruk-Hai and formed them into an elite fighting force, identified by a red version of the white hand of Saruman, intended to mock Sauron for his trust in Saruman. As the battle of Helm's deep was drawing near, Saruman sent this force of two hundred elite Uruk-Hai alongside Mordor to await an order to invade Mordor at its weakest. But, Saruman did not expect for the ents to invade Isengard, and thus, the order was never sent. The elite Uruk-Hai became confused and hastily sent a group of twenty scouts to Isengard for an update on the invasion. This is their story.

[A.N. Please tell me if you think this story is plausible, and if you have any recommendations for the story.]