first of all i beat halo 3 on legendary with no help in 2 days i have numermeruos vids on
youtube. visit youtube to see me kick ass. to  kill a banshe shoo9t it with needler and it
will die , to kill a hunter in one hit u must get a sniper and wait it to turn at a serten
angle and shoot it in belly back were no armour is!!!to kill friends on a live just throw
grenades or flares to blind sight them them shoiot them

ok when u spanw a cretea thing put a brige on top of it then delete the cretea and boom u
have a floating bridge u can only do it wit ha few things btw if u wana add me on xbox
live on halo 3 im exsternalpain

on Valhalla in forge(or any gametype but i wouldnt know because i did it in forge) put a
warthog on the top of the hill(u know where the turrent is the on big hill in the middle
of the map)and get a missle pod. now have someone on a different team drive the warthog
but just dont drive it anywhere.now pick up the missle pod and lock on the warthog.now
slowly turn to either side untill the red thing is on the edge of ur sceen. now shoot(u
might have to jump then shoot)then all the missles will orbit the warthog then explode
over time but they wont hit the hog

you in tank,hit rite above your opponent,or in front of them so they die easyer.

Ok so heres how to make any like worthog or something float with you in it so what you
have to do is go to forge mode and put down a ghost but dont move and make the respawn
rate 180 the maximum runtime the highest it will go and make sure that there are no other
ones on the map and then have some one move it far enof away that it wont touch the new 
one and put another ghost in the exact same spot or it wont work and make the respawn rate
10 and the maximum runtime the new highest and then blow them both up with a rocet
lawnchair and then still dont move and have some one get in to the first gost that pops up
and drive away but DO NOT BUMB IN TO ANY THING YET and have the next gost to pop up be
picked up by the ball guy but you cnanot get out of or move the ball guy at all or it wont
work and then when the other gost pops up pick it up and it should look like it is loating
and have the other guy in the other gost bump in to the wall and he should float its so
much fun :)

what you do is go on forge and play foundry, then go and face a window in edit mode and
spawn a teleporter (receiver/2 way). then the teleporter will be outside, if not try
again. then teleport through a two way node to go outside (make sure you are in edit mode
still or you will die) :P

im not sure if this is a glitch but it is really cool! First you get into custom games and
then and play sand trap... set the game up so you have the use of vehicles,have your
secondary weapon be a sniper rifle then find the banshee, then fly it to the top of the
tower where all for points meet, there you have a perfect view of almost all the map. i
also recomend you destroying the banshee when you get up there because the player(s) may
take it and fight you there... which may be fun, i've never tryed it but it seems cool!
HAVE FUN WITH THIS HINT =D

ok so the trick here is for forge if you want say an open box to have a wall going thru it
you have to put down an open box and ether remember where it was or put some thing there
to make it and dont pick it up but press x twice on it an you should see some menu thing
make the respawn time 30 or more and make it so that id does not spawn at game start so
start new round an dput a wall where the box was and wait 30 seconds and boom you have
your costom item but do not pick up any of them or it gets glichy.