At the beginning of the game, Miguel is a coyote, or "people-smuggler" who is attempting to gather bomb compenents. He is first seen in Las Vegas meeting with Alvarez as he arrives by car. He is next heard talking with NSA agent Neville but tortures him. After he kills Neville, he plants a gas bomb in an arena killing several hundred people and flees to the libary. He is then discovered to be disguised in a hazmat suit and is chased by the player through a junkyard until backed up against a fence. When he is faced by the player he is initally defiant until the player orders his execution. He immediately sells out his brother before pulling another Desert Eagle, requiring the player to ready their weapon and shoot him.
- Killing him before this point results in mission failure. As long as he is not killed by being shot, however, he can be hit multiple times as the level progresses, and will be splattered in blood by the time he is interrogated.
- When he is finally cornered and interrogated, he will drop the Deagle he was holding, and then pulls a second one out of the holster in an attempt to kill the player before being killed.