Halo: Combat Evolved/Glitches

Backpack reload
An easy and yet invaluable technique for any Halo player, the backpack reload glitch allows the player to reload it's weapon with the other weapon out. This glitch works as follows:
 * Have the weapon that needs reloading current. (This commonly happens when you were attacking with the weapon and the clip is spent.)
 * Quickly hit the reload button twice, and then switch to your other weapon.
 * The reload animation will continue for the 3rd person view, and you will still hear the reload sound effects. You can fire your weapon while the other reloads!
 * When the animation/sounds are finished, your weapon is done reloading, and will be reloaded when you bring out the original weapon. That is, don't make the mistake of switching back to your other weapon expecting it to be reloaded if it's reload sound didn't fully complete.

Using this technique, you can cycle through two different weapons without ever having to pause to reload, which is what makes it such an essential skill. Works great in cliffhanger close-range situations!

Double melee
A particularly advanced glitch, double meleeing is an invaluable glitch in close combat. It is one that you should both use and be aware of it being used against you. You must have a grenade in your inventory for every time you preform this action.

When you are within hitting distance of your opponent (keep in mind, different guns have different hitting distances AND different speeds at which the gun travels forward):
 * Press the melee button once.
 * As soon as your melee makes contact with your opponent, immediately throw a grenade.
 * As soon as you hit the grenade button, melee again.

Throwing your grenade too soon will result in your first melee action cancelling out before it has a chance to make contact with your opponent. Also keep in mind that if you execute only one melee successfully, you should back up as your grenade will soon explode.

If done correctly, a significant amount of damage may be done in a very short amount of time. If running forward while successfully completing a double melee, this is enough to kill a fully shielded opponent with full health.

However, this technique may be countered by ducking before your opponent can execute the double melee. This is not foolproof but will often work, giving you more time to shoot your opponent as their gun reloads. Also, if your opponent executes a double melee but does not kill you, move FORWARD because the grenade your opponent threw will soon explode behind you, and you will not have enough time to back away from it. Moving forward may allow you to escape it's blast radius.

Quick invisibility
After picking up an invisibility powerup, quickly fire one bullet from a non-zoomable weapon (minus the Flamethrower, Fuel Rod Gun, or the Needler).

Alternatively, you may shoot one bullet from a zoomable weapon, and then switch to a non-zoomable weapon.

This technique can also be used in combat. If you are shot, or if you yourself shoot while holding a zoomable weapon (plus the Flame, FRG, and Needler) the time before you become fully invisible, and thus harder to hit and see, is significantly longer than if you were holding a non-zoomable weapon. It is preformed the same as if you had just picked up and invis. Simply switch to a non-zoomable weapon and you will become invisible much quicker than if you were holding a zoomable weapon. The effects of this technique are best used when a player is backpack reloading or trying to make a quick get-away. Turning invisible quickly is a more potent trick on the Xbox version of Halo as reticule magnetism is severely reduced when a player is fully invisible, making it much harder to hit that player.

Reloading quickly
Reload quicker than usual by hitting the melee button after your new clip has been inserted into your gun. This takes practice so experiment to get a better feeling of when it is OK to melee and when it isn't while reloading your weapon.

Shooting quickly after throwing a grenade
Simply melee IMMEDIATELY after throwing a grenade, and you will save time this way.

Although this technique shaves only milliseconds, it is very beneficial especially against skilled opponents. It is a glitch that should be made routine, except of course if you choose to backpack reload.

Throwing a grenade while reloading
Quickly press reload reload and throw grenade after shooting. This will allow you to get a grenade off without hindering your reload time.

Silently switching weapons
While switching weapons the weapon being pulled out will produce a noise loud enough for the a listener to pinpoint your location. To combat this melee immediately after switching your weapon. Beware of your melee coming in contact with your environment as this will make noise as well.

Avoid fall damage
Right before your feet make contact with the ground, hold the crouch button for a short period of time. Hitting crouch to early will result in you taking MORE damage than normal, so it is better to be to late rather than to early in this instance. You may fall a much greater distance and take none or a significantly smaller amount of damage by using this technique.

Share a powerup among multiple players
Have each player stand as close as possible to where a powerup spawns, and as it does so, each player will acquire that powerups benefits. This tactic is most lethally used in conjunction with timing powerup spawns, which will be discussed later.

Note that this can also be done on the level Rat Race, by standing under where the powerup spawns and then shooting it once.

Grenade jumping
Although not technically a glitch, it should be noted that you may use a grenade's explosion to your advantage. If a player jumps just as a grenade explodes, that player will be catapulted upwards. It can also be done while running and jumping in order to overcome an obstacle. Jumping on a grenade may also surprise many opponents as a vertical climb is not expected. Grenade jumping will also give you a slight height advantage for a short period, making a headshot more likely.

For more info on useful grenade jumps in multiplayer see Useful_Grenade_Jumps

3 shotting an opponent easier (3ShotKill - 3SK) with the pistol
This also may not be considered a glitch, but should be considered when playing Halo multiplayer.

Instead of shooting an opponent three times in the head with the pistol, you may shoot him twice anywhere (the foot, the arm, anywhere), and as long as your third shot hits the head your opponent will be finished.

Warthog Teleporting
This trick only works in the PC (and Mac?) version due to its poor netcode..

Depending on lag you may be able to kill someone or even grab a flag before the server catches up with you. Note that if someone else occupies the same seat you activated you won't be teleported. If you keep failing you may need to find a server with more players or an even worse ping.
 * 1) search for servers, and join the one with the worst ping you can find. The higher the ping and the more players it has the better your results will be.
 * 2) Find a Warthog and stand near it.
 * 3) When the game starts to suffer from the lag press E on any of the places you can climb onto but immediately pull away and go do something else. If the game puts you inside the Warthog immediately, hop out and repeat until it stops responding to activation. You can then run away and do something else.
 * 4) When the host system catches up with the flow of instructions it remembers that you activated the Warthog and so dutifully puts you in it, regardless of where you currently are in relation to the Warthog!

Warthog Teleporting is generally considered to be cheating, but it isn't predictable enough to be very useful.

This problem was never patched. It may also work with other vehicles, but the Warthog gets the best result.