Blaster
The blaster is a standard weapon which uses your energy-supply for ammo. It is long range and efficient for destroying vehicles or stationary defenses. If you see an opponent standing idle, (because you won't hit them moving), pull out your blaster and bring down a reign of laser fire.
Plasma Gun
The plasma gun is a high-power weapon that is great for indoor devastation. Firing short range fiery balls of plasma, they will decimate anything in a few direct shots. The plasma gun is not for outdoor firing, as it tends to miss it's target, but if you use it in close quarters it always hits it's mark.
Chaingun
The chaingun is a good weapon for hitting a fast moving opponent. After the muzzle rotates 360º it begins unloading round after round of ammunition in a widespread attack. It doesn't do much damage with each bullet, but the wide spread attack makes it very easy to aim. A good weapon for shooting aerial opponents.
Disc Launcher
Standard-issue on all newly spawned players, the Disc launcher is staple of the dogfighter's arsenal. Featuring a battery CD-shaped rotating explosive discs, it is used by nearly every tribesman. After firing the disc will travel until it hits it's target; and exploding on impact. So even if you don't connect with a direct hit, the splash will burn.
Grenade Launcher
The grenade launcher is another powerful weapon. It shoots a single grenade per shot, bounces a few times, and explodes on contact. It's best used when fired downhill, because if you shoot it up hill it tends to roll backdown and ruin your day. It can also be quite fun to bring one of these indoors and bank them off walls and around corners; startling your opponents, and usually taking them out.
Laser Rifle
The tribes version of a sniper rifle, the laser rifle is a weapon used by light armored players to pick off enemies who happen to be standing idly. The weapon uses a full tank of energy from your pack so if you are firing this weapon off, making a hasty retreat is going to be difficult. However, the disadvantages can be overlooked, as a single laser blast can take down an opponent.
Electron Flux Gun
This weapon isn't very important if you plan on normal head-to-head fighting, but this weapon is very good for bringing down enemy defense. To use this weapon properly you need a team-oriented assault consisting of 1-2 teammates firing on a defense structure while you use the Electron Flux Gun to suck out all it's defenses. Using this against a person is usually useless as it will make it so they can't get away, but they can still shoot you fairly easily.
Heavy Mortar
The grand-daddy of heavy explosives, this weapon is so large it may only be equipped by those in heavy armor. It fires large explosive shells which explode on contact with a blast large enough to kill someone in a single shot. Carrying this weapon comes with responsibility though, as you're often called on by teammates to clear out an enemy base. Also, if you're lobbing mortar shells around the battlefield, you're going to want to watch out for teammates; as they tend to take offense to being blown up.