Is there any glitches in halo 3 that give you either invulnerability or unlimited ammo in halo 3 campaign mode

also how do I get all the achievements easily and how do I get my rank up quickly in matchmaking

Is there any glitches in halo 3 that give you either invulnerability or unlimited ammo in halo 3 campaign mode
There's no glitches like that. Listen, I'm trying to get a couple of Achievements too. If you help me, I'll help you and I can show you funny glitches.





Gamertag: VileHazerd
Reply:just play the game and stop trying to take the easy way
Reply:There are no glitches that do that, and you can ussually find some guides on sites such as www.gamefaqs.com that will help you with the skulls and story mode achievements. As far as leveling up in matchmaking, try and play with higher level people. Also lone wolves seems to be the easiest to rank up in, even though you cannot take a higher level friend in with you.