Halo Triple Pack Cheats

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Halo Triple Pack Unlockables:

Get a banshee in last level. Fly to the right of the building when the door is busted. Go towards bottom right and you should get the cutscene with Tartarus. You can then fight him.

In Metropolis, fight up until tunnel. Then, destroy all vehicles EXCEPT FOR ONE BANSHEE. Then, slowly get in your vehicle and slowly back down the tunnel, making sure the banshee is following. It is hard, but at the end, before you go up to the outside, just before loading bit, get in. You should get in as it loads and you should keep in. Then, go fly up to the highest Bridge to get the Scarab Gun. It looks like a Plasma Pistol.