Weapons

Kinetic Weapons
Kinetic weapons travel towards its target at high speeds and have high firepower.

From MGs Family:
What these weapons have in common: These weapons have a medium fire rate but they can deal increased damage after 40m(WB2000 deals extra damage after 30m)
 * MG
 * MR500
 * WB2000(Fires two bullets at a time, reloads while firing)

From Cannons Family:
What these weapons have in common: Cannons have a slow fire rate but they deal highly increased damage below 10m. F300 and Decimator support burst shooting, but they cost Platinum to purchase.
 * Cannon(Fires 1 bullet at a time)
 * F300(Fires 2 bullets at a time)
 * Decimator(Fires 3 bullets at a time)

From Blasters Family:
What these weapons have in common: Blasters were meant to deal high damage and their bullets are very different to other kinetic weapons. One special trait about Blasters is that when they hit any obstacle in its way(except when the bullet travels out of bounds or it hits any Mech), it can reflect twice before the bullet has to collide and stop. That said, they can also bounce back to inflict damage to your own mech.
 * Blaster(Fastest reload time, red bullets)
 * Prism(Fastest fire rate, fastest bullet speed, slowest reload time, blue colour bullets)
 * Imperator(Highest damage per bullet, slowest fire rate, slowest bullet speed, golden colour bullets)

Note: Blasters were in the Energy Section, but because Energy weapons travel at much higher speeds than Blasters, they got moved to Kinetic Section. You can still find Blasters in Energy Section at the official Mech Battle site. Both Prism and Imperator need Platinum to purchase.

Rockets
Rockets travel slowly but some rockets can 'lock on' to its target, making it harder to dodge. You should be cautious when using Rockets, because they can deal 'splash damage' and inflict damage to yourself.

From Rockets Family
What these weapons have in common: Rockets deal moderate damage but deadly when attached 3x/4x on a mech. Rockets travel slowly when fired from a moderate distance(>30-50m), so Rockets are easy to dodge. They glow yellow in colour with a brown/black trail behind them.
 * Q200(Fires 1 rocket at a time, reloads while firing)
 * Q3500(Fires 3 rockets at a time, fastest fire rate in Burst Mode)
 * Persuader(Fires up to 6 rockets at a time, reloads while firing, slowest fire rate in Burst Mode)

From Swarms Family
What these weapons have in common: Swarms 'lock on' to targets but if a target isn't selected the missile will travel in a straight direction. Swarms first move sharply to one side then move towards the target. This was done to make it more difficult to hit the target. Swarms will lose their aim if the target mech has Stealth ability activated. They glow white in colour and leave a white trail behind itself.
 * Swarm(Lowest missile capacity/missile damage)
 * JJ2000
 * Justice(Highest missile capacity/missile damage)

From Tomaks Family
What these weapons have in common: Tomaks fly straight up then move towards the target. It is easy to see where a Tomak is going because if the target is locked, a red line will show the path that the Tomak will take. All weapons from Tomaks family need 200 Platinum to purchase. They can only carry one missile before needing to reload. Tomaks will lose their aim if the target mech has Stealth ability activated, or if no target is specified.
 * Tomak(Fastest fire rate, lowest damage per missile)
 * Tomak_NGEN
 * RR8(Slowest fire rate, highest damage per missile)

Energy
Energy weapons travel instantly, however some Energy weapons have limited or no aim-support(the ability to track a target to assist in firing.)

From Lasers Family
What these weapons have common: Lasers travel at light speed and move instantly towards the target. Aim-support capabilities decrease as the lasers get heavier.
 * Plasma Gun(full aim-support, blue in colour)
 * LaserMk2(vertical aim-support, orange in colour)
 * Bertha(no aim-support, purple in colour)

From Shields Family
What these weapons have in common: Shields provide protection to your Mech, but you will not be able to install as many weapons as you could without shield. Shields cannot attack any mechs. You can only install one shield on one Mech, and both Genesis and Echo needs 3,000 Platinum to purchase. Genesis and its Mk2 variant are not resistant to Energy Weapons. The Shield will regenerate itself if it takes damage.
 * Genesis(Low protection)
 * GenesisMk2(Medium protection)
 * Echo(High protection, resistant to Energy Weapons)