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Step 1
Shoot at the head. This is the first and most important skill you need to master in Halo 3. Head shots can do up to 10 times more damage than body shots, so to efficiently kill both AI characters and other human players, aim a little higher. For guns like the battle rifle that have recoil, start at the body and let the shots rise to the head.
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Step 2
Take cover. The best defense in Halo 3 is to expose as little of your body as possible so that your enemies have to hit a very small target. Use the crouch button to duck down and peak out from behind cover.
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Step 3
Find your weapons of choice. There are several weapons in Halo 3 and none are necessarily better than the others. Find the weapons that work best for you and your playing style. If you have a steady hand and quick reflexes, consider the sniper rifle and pistol. If you like to run up and fight in close proximity, try the shotgun, mauler or spiker.
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Step 4
Be cunning or erratic, whichever works best for you. Many Halo 3 players are going to tend toward being cautious, but there is something to be said about the player who plays with a controlled sense of chaos. The more erratic characters will die more, but they can deal some great damage, while more cunning and controlled players will drive people crazy due to their efficiency.
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Step 5
Learn the multiplayer maps. To be able to win consistently in multiplayer you need to get familiar with the maps. The best way to get familiar with the maps is to play them. It is easier if you take it one map at a time so that you can get an idea of where weapons, vehicles, powerups and grenades are located, as well as an idea of the best places to hide and attack from.
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Step 6
Remember your grenades. Grenades are powerful weapons in Halo 3 so don't forget you have them. Work on your trajectories and aim with your grenades. Remember that frag grenades will hurt players in close proximity, while spike grenades and plasma grenades can be stuck to enemies for an instant kill.










