Here are a couple :
1. Shoot People
2. Don't shoot yourself/friends
3. Don't throw a grenade at your friends
4. Don't shoot a rocket launcher at the ground between your feet.
5. Don't die
halo 3 does not have any cheats
There are not any avatar awards for Halo 3.
Halo 3? Simple Go to any game Stop nearby. I promise you that there is a whole bunch of halos. Not just halo 3.
Sorry there arn't any, The only skulls are in "Halo 3" Which are used in "Halo 3 O.D.S.T."
no
no
None of the Halo's have any 'real' cheats, the only one is the lower your weapon one, which is just like Halo 3's.
Halo 4 is not out yet and no ps3 will never have any halo games.
Yes, in 2010 Halo : Reach will come out.
Nothing, but they give you hints about what bungie might do next with the halo series
h*** yes!
You can play halo 3 on any xbox 360.