How do I unlock the fully automatic FAL on Modern Warfare 2?

nope your friend was serious, jerk offs like them have no better time than to cheat look up modded controllers on youtube people make them themselves but its really easy to get caught with homemade ones you can buy ones from websites for like 150 bucks each. don't get one cause if i find you in a game ill report your *** faster than you can say mw2