My explanation:
Blaster: Firing small pulses of molecular energy, the blaster does minimal damage. The design is based off the old technology "Pistol" Always carried by marines as a backup weapon, the Blaster's ammo regenerates giving it unlimited ammunition.
Rifle: A standard projectile weapon, this is a good choice for killing small aliens, Dretch mostly. It has a rapid firing rate, but this means that the ammunition is used up fast, and it takes a long time to reload.
Pain Saw: An interesting piece of technology, this weapon got its name from Soldiers in the field, noticing its adept power for destroying Alien structures, and doing massive damage to anything, from Granger to Tyrant. Some Marines even specialize in that one weapon alone. Using a combined melee attack with a jumping electrical arc, when activated the blades spin like a classic saw, but the blades are charged with electricity. These two combined powers make it a formidable weapon.
Shotgun: Classic weapon. Firing heavy Rantshot©, this gun carries 8 shells at a time, and is VERY effective at close quarters. Unfortunately, it is not good at long range, so its capabilities are limited.
Lasgun: The first high-power weapon at close and long range, the Lasgun fires Photon bursts at a rapid pace. Doing moderate damage, this gun can be upgraded with the Battery Pack to increase its ammo to 300 rather than 200.
Mass Driver: An almost completely sniper-oreinted weapon. Effective at long range and close, the mass driver is almost imposable to use at close range because of its unwieldiness. Despite these drawbacks, the advantages of this weapon are considerable. It fires on a completely straight course, firing high speed antimatter particles that do massive damage. It is also compatible with the Battery Pack, and is commonly used with the Jetpack.
Chaingun: A very good weapon for taking down larger aliens, this gun is effective at close and medium range. It works on the same solid-projectile principle of the rifle, but it contains 300 bullets in a large container. The drawback is that the weapon is very heavy, and will jerk around spasmodically because of the heavy firepower. Fortunately, when equipped with a Battlesuit, the kick is reduced to almost nil, and it is a common combo choice.
Pulse Rifle: Another clip weapon, this gun is completely different than the other guns so far. Another energy weapon, this gun fires concentrated Electron Plasma in very rapid bursts. A very powerful weapon, it is also compatible with the Battery Pack and is also a common Jetpack combo choice.
Grenade: A small explosive with a short timer.
Flamethrower: Known as the "Flamer" to most marines, it is a very good weapon for taking down small to medium alien classes. It uses a highly flamable liquid napalm formula ignited by a propane torch at the end of the emitter. If the wielder is careless, he may end up toasting himself.
Lucifer Cannon: It got its name for the Hell it gives the aliens. Using a Nuclear Reactor technology at the back of the gun, it fires concentrated blasts of radiation that travel slowly, but do INCREDIBLE damage at ANY range. Another interesting feature is the charge ability it has. it can charge for about 3 seconds, and that's enough to kill a Tyrant if it makes a direct hit. It also has an interesting fallout effect in the way that if it misses its target, it will still damage it to a certain extent. This is good for killing large clusters of structures. The drawback is that is it misses and hits near a friendly or structure, it will most likely kill or hurt it. It is also compatible with the Battery Pack.
This is my definition of the Trem Weapons.
And I did NOT use the phrase "Depleated Uranium"
