Cheats > Game > Cheat: 26726

Tougher game
Create a new profile, name it "BRUTAL", and start a new game. If you entered the code correctly, a message will appear. This code completely beefs up the enemy AI and seems to change their behaviors. Even under the Standard difficulty setting they will ambush you, find a way to hunt you, and come flailing out in order to kill you. They will take the same amount of hits, but be much harder to put down, thus making the entire game harder. They drag themselves away when wounded, similarly to the original previews of the game or when you fight the Halo aliens under the Legendary difficulty setting. Note: You must watch the full ending once, have all the DNA canisters, and at least one open campaign file for this code to activate.