Halo: Combat Evolved/Vehicles

Scorpion
It is a slow-moving all-terrain tank. It has three weapons. The main one is the tank's turret: this fires an explosive round that does major damage, and works well against Banshees, Warthogs and other Scorpions, but it should not be used for any other Covenant. The second gun is the machine gun mounted on the right of the tank. Use this for smaller targets, and in-between reloading turret rounds. The third are the treads. They basically run over everything, but don't use them as a primary weapon as the tank moves very slowly. If you stop and let Marines get on, they will shoot at everything at which they can aim. All weapons on the Scorpion have unlimited ammunition.

Battling Scorpions
There are a couple of good ways to combat an enemy in a Scorpion tank:
 * The, hopefully, obvious way is to use a rocket launcher (or a FRG, if you are playing on PC) against an enemy Scorpion. Keep in mind however, that although tanks may drive slowly, you will still need to lead your shot to some extent, especially when firing from a long distance. One direct hit should kill under normal slayer rules.
 * If you can't get your hands on a rocket launcher, then probably an equally, if not better way, is to use a sniper rifle. There are gaps in the rollcage for the Scorpion, and so you should be able to hit the driver, if not score a headshot. Remember that experienced players will know better than to drive straight at you though, and will try to keep only their turret faced towards you, with the actual chassis of the tank facing the opposite direction.
 * If you wind up close to an enemy tank, try to use plasma grenades to destroy it, if you have them. You should only require two if you make direct latches, and if you don't have plasma grenades, throwing frag grenades under the tank will also do a fair amount of damage, but not as much as stickies would.
 * Another good way to take out an enemy tank is to use a Ghost vehicle. Because of the vehicle's stunning effect, the driver won't be able to turn as fast as he'd like, and so is rendered helpless as long as you don't overstrafe back into his turret's way. Also, even if that happens, it is considerably harder to kill a Ghost than another vehicle because of the fact that it hovers above the ground.
 * PC only: Should you wind up very close to an enemy Scorpion, then it is quite easy to just roast him with the flamethrower, provided you watch your step.
 * PC only: Also, you may use a Banshee to attack an enemy Scorpion in a fashion similar to that of the Ghost. However, keep in mind that you have a fuel rod cannon, which you can cause a large amount of damage with, but also, you have to fly out of the way, for the Banshee cannot strafe.

These aren't the only ways you can go about taking down an enemy tank, but rather, they are just tried-and-true methods for combatting these massive vehicles.

Warthog
Also known as the M12 light reconnaissance vehicle, the Warthog is standard to the UEG armed forces. The Warthog is fast and maneuverable, but can easily roll over during hard turns. Mounted to the rear of the vehicle is a three-barreled machine gun.

Using warthogs
Driving a warthog is a piece of cake as long as you can detect patterns in your opponent's opposition style and you don't make hard turns.


 * A driver and gunner combination in a warthog can mean an incredibly effective drive-by solution, also a great distraction to the opposing team giving your team members time to move into the base and get the flag.
 * Warthogs can be stationed (sometimes with a gunner) in many places to creatively ambush the opposing team.
 * A rocket warthog on the hill behind the red base or the catawalk before the red base in Blood Gulch can deal many kills to the opposing team and, if done with precaution, can leave them confused for a while.
 * A warthog placed in front of the cave entrance to a base can be used to stop the opposing team from using it to get to the base and take the flag.
 * Warthogs stationed directly above a teleporter can sabotage it's team's ability to use it, requiring that they walk on foot to the teleporter site and unblock it. Until the vehicle respawns or it otherwise becomes unblocked with an explosive projectile, this can serve as a good way to attract the team to the teleporter and ambush them.

Battling warthogs

 * Considered cheap if overused, many players will try to ram you over with a warthog when you're on foot. You can use this to your advantage by fooling the driver to get close enough to stick with a plasma grenade. If you have a plasma grenade and a warthog is approaching you in a predictable way, initially you'll want to appear to the driver of the warthog that you're helpless and unable to fight back by standing still. It'll appear to the driver that you're an easy kill, but in reality you've got a plasma grenade equipped and waiting to project. Once you're positive the driver has taken the bait and is about to ram you over, jump out of the way and stick the front of the warthog while you're airborne. If stuck at the edge of the warthog, you're guaranteed the warthog will flip over. If stuck near enough to the driver's seat, you may be awarded an instant kill in addition to knocking the warthog off it's path. However, this technique can be easily countered where more experienced players can whip you with the warthog's rear, making the odds of sticking the warthog lower and their odds of killing you higher. Furthermore, the driver might exit the warthog as soon as it's stuck to avoid as much damage as possible, so it's best you identify your opponent's experience before you try this technique.
 * In the event you don't have a plasma grenade handy, you can try throwing a normal fragmentation grenade in the path of a warthog. If the aim and timing is right, the grenade will knock the warthog off it's wheels and possibly kill the driver and passengers if any of them are low on health. This takes a lot of practice, and in theory isn't as effective as a plasma grenade.
 * A rocket launch to the driver's seat can instantly kill the driver and deal a lot of damage to the passengers. Just keep in mind you probably don't want to do this if the warthog is approaching you and you don't want to suicide.
 * Sniper rifles can be used to take out stationed gunners and drivers when hit in the body, sometimes even while the warthog is in motion!

Ghost
The Ghost is the standard reconnaissance and rapid attack vehicle of the Covenants. Th Ghost is mounted with a directed energy weapon capable of launching a bolt of super-heated plasma. The Ghost may be fast and maneuverable, but the driver has no protection from incoming fire.

Banshee
The Banshee is the standard ground assault aircraft of the Covenants. The Banshee is very fast and maneuverable, with the capability of hovering. It has two weapon pods mounted on both sides of the fuselage, within these pods, a light plasma cannon and a fuel rod cannon are mounted. Only heavy weapons are capable of causing damage or destroying the Banshee.