Delta Force: Urban Warfare Cheat Codes for Playstation 2

Cheat mode:
Press Select, Right, Up, Down, Circle, Left, Square, Triangle, Circle at the main menu to unlock the cheat options.

One hit kill with the knife
On level 1, when the man comes up, get your knife out. Aim your knife at his head and throw it. This should kill him silently. Do what you want to the other people. Remember to get your knife back.