say you are in the campaign menu. you then press start, you should have a menu that say things like screen shots and stuff. you then press right on the d-pad, select appearance, here you can change your armour and your colour and also you service tag
you can customize your character in halo 3. and you can change your character that has different armor in halo 3:odst
http://hubpages.com/hub/Halo-3-Armor
No, there is no armor in Halo 3 that has a knife in the shoulder.
There is no Brute armor in Halo 3, only Elite and Spartan models.
go to http://hubpages.com/hub/Halo-3-Armor
Halo 3 I'm guessing Start, Right, Down, A. That'll give you the ability to change your color, armor, emblem etc.
you get all the vidmaster achievements on halo 3 and halo 3 odst
NO
recon armor
Only the color of the armor.
the same way in halo 3 because when you play halo 3 mythic it says your playing halo 3
there is no permanent cheats in halo 3. you need to unlock them by achievments. and, you can not get the flaming armor effect, it is only for bungie employees. in halo reach, buy the legendary package to get that armor effect.