how to u make a comstome game in halo 3?

[s s]

like desine your own game not a premade one

 

[Kurt B]

you will need to have acess to online for to create amap it will take up a lot of memory
so get online to your xbox and have fun

 

[Matthew V]

First you learn how to spell.

 

[germen2525]

go into forge, you can do every thing there.

 

[perfecsaiyan]

If you're talking about trying to make your own character...

While in the Lobby:

1) Press "Start"
2) Press right on the d-pad
3) Go to "Appearance"

You can armor there. But you only have access to certain armor, you'll have to unlock the rest.