1st mobile suit (Start of rp) being used:
Casvals Gundam
List of Gundam/mobile suit's weapons: 60mm Gatling Cannons "Vulcan Gun"
The Vulcan cannons were 60mm Gatling Guns stored on the sides of the Gundam's head. Having the greatest rate of fire of all the Gundam's weapons these are primarily used to ward off advancing enemies, shoot down missiles, or hit other fast moving targets. They also made good use as an anti-aircraft and anti-personnel weapons. The Vulcan cannons however had a hard time piercing heavy armor (Though they had shown the ability to do severe damage to Mobile Suit's if fired at point-blank range)and thus were not often used against larger, more heavily armored foes. Still the Vulcans were useful in preserving ammunition for the Gundam's more powerful weapons such as the Beam Rifle.
BAUVA*XBR-M-79-07G (Bauva eXperimental Beam Rifle Medium-range)
A revolutionary weapon for it's time, the Beam Rifle is the primary weapon used by the Gundam. Making use of the Federations E-cap (or "energy capacitor") technology, the rifle uses charged concentrations of Minovsky particles as ammunition. This gives the beam rifle firepower equivalent to that of a battleship's beam cannons. As the Minovsky particles destroy matter on a molecular scale, the beam rifle can penetrate even the thickest armor and destroy its target with a single shot. One weak point of the rifle was its energy limits. The rifle could only be fired 16 times before depleting its energy and becoming useless.
Beam Saber
The Gundam was the first mobile suit to ever use a beam-oriented weapon in melee combat. The sabers are stored on the backpack, and can transform from saber to the Gundam Javelin, a large pole with a three pronged beam at the end. The beam sabers use Minovsky particles held in place by an I-Field to form an effective cutting surface that can slice through nearly any material. The particles for the beam sabers are stored by E-cap in the hilt of the saber, which is recharged from the Gundam's reactor when the saber is returned to its socket. Once activated, beam sabers do not rely on the mobile suit's reactor and can be thrown or discarded as decoys. The beam saber is most often used for close range combat or as an emergency weapon once all other ammunition has been depleted.
Gundam Hammer/Hyper Hammer
A rather unusual weapon, the Gundam Hammer was essentially a large spiked ball attached to a chain. It was used to give the Gundam a ranged melee weapon. The Gundam could either throw or swing the Hammer around itself in order to impact and damage its target through the sheer mass of the hammer. Later, it was upgraded into the Hyper Hammer and had several rockets mounted into the ball in order to give it use in space allowing it to maneuver in zero-gravity also the ability to change it's direction before impact, and to increase the damage it could cause.
BLASH*XHB-L-03/N-STD (Blash eXperimental Hyper Bazooka Long-range)
Similar to the Zaku's Bazooka, the Hyper Bazooka was a heavy weapon used by the Gundam. Technically a large rocket launcher it could fire several 380mm missiles to attack targets at long range. While very powerful the Hyper Bazooka had a slow rate of fire and fairly little of ammunition. Most oftenly used to take out slow, heavily armored targets.
RX*M-Sh-008/S-01025 (Renpou [Federation] eXperimental Medium Shield)
Hand-carried, forearm-mounted or stored on the Gundam's backpack, the shield is a simple defense used to block most incoming ballistic and explosive projectiles. Also used to great effect in close quarters battle with enemy mobile suits. Has a view port than can be sealed off with an internal blast plate. The shield is also used to deflect heat away from the mobile suit when undergoing atmospheric re-entry.
Systems
Core Block System
The initial idea of the Core Fighter was as a form of escape if the Gundam were to be destroyed, allowing the irreplaceable data collected by the learning computer and the pilot to escape from a replaceable machine. Another idea was that the Core Fighter could be launched into the field as a support fighter, and the A and B blocks could be delivered by another vehicle (the Federation developed a support unit, the Gunperry, for this role) if needed for a mid-air conversion into a mobile suit.
Learning Computer System
A critical component of the Gundam's success in combat, the Learning Computer System was similar to a modern day black box. It recorded the data from each of the Gundam's battles for further use. However, the system could also actively learn and improve the capabilities of the Gundam, explaining why Amuro had such difficulty fighting two Zaku IIs on his first try but managed to hold off ace pilot Char Aznable at Luna II.
Re-entry Coolant System
The re-entry system is used for only emergencies when the Gundam is falling to Earth and has no chance of reaching its carrier. The coolant system acts as a large heat-resistant film which lowers the Gundam's temperature when descending to Earth.