Royce appeared with Ghost and Meat at the time of Rojas's assistant's escape. They attempt to head him off, but he opens fire in a busy intersection causing civilians to flee, which creates a huge traffic collision. After he has been apprehended, Royce, Roach, and Meat attempt to clear the Favela and find Rojas, when Soap and Ghost get the information from his assistant. The three soldiers come under heavy fire from the Brazilian Militia. Meat is killed, but Roach and Royce continue to push through despite the loss. Royce is eventually overwhelmed by the enemies' fire and gunned down, leaving Roach alone.
It is possible for the player to kill Royce without penalty.
Royce's facial hair may change after shooting Rojas' assistant in the leg. Also, his M4A1 may gain or lose an M203.
When Royce informs Roach that he has been hit, his body will already be down.
Ghost, Royce, and Meat all spawn outside of the map, where they would usually start their chase on Rojas's assistant at the intersection. If the player is able to exit and find them, they are able to be killed by the player without being penalized for friendly fire.