It depends on what controls you have on, but if its default press and hold X.
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There are no cheat codes for Halo: Reach, nor any of the other Halo installments. However, glitches, or, bugs in the games programming, are abundant. Try Google to find Halo: Reach glitches, but remember; Nobody likes a Glitch Abuser.
as a matter of fact it is halo reach. Halo reach is like all of the halo games put together, but even better! =) hope this helpedEdit Erix_D: The above message is a matter of opinion so there can be no real answer to the best Halo game.
You put in your Halo 3:ODST campaign disk and go to play the BETA and download it.
just put down a hill marker, go on options 'advanced' and put in safe haven. make spawn points 'red' for humans and 'blue' for zombies have fun!
i believe bungie has a small team left to create more add ons for halo reach. so they might have an armor add on or just put it on the full version.