sorry but other than mods you can't "cheat".
you can use as many guides and tips as you like!
nowhere because there are no cheat codes for halo 3
There isn't a known cheat code for this on Halo 3.
NO
there is no codes in halo 3 ... -.-
NO
yes
I'm sorry, whoever told you that there was a Halo 3 cheat has lied.(Yes there are glitches, but absolutely nocheats)
There are no cheats for halo 3 there are only mods and hacks
No
Wow, get a life.
No.
yess