I've had this game for 1 year and have only gotten past the 1st mission using codes. There are 70+ enemies per level, and if the alarm goes off, this can increase to 130+. The only new weapons are a rifle that can be heard across the entire level, the same useless submachinegun, impractical harpoons, knives, pistols, and unlethal lethal injections. This game is so ... frustrating. It has okay garphics and sound, but the missions are impossible.