In mission 9, Colombia, your objective is to enter the villa and eliminate the drug lord. If you pay attention, you'll notice that the interior of the mansion is much the same as Tony Montana's mansion in the movie Scarface. This is particularly noticeable in the main room with the two staircases and the red carpet, which is an exact copy of the room where Tony makes his last stand in the movie. Also, at the top of the stairs in the middle is an office, which was also taken straight from the movie.