These are all fairly older designs. I hadn't had the opportunity to fire a weapon at this point in my life and had a lesser understanding of weapon ergonomics.
Compact Phydium Repeater, Model 43
Magazine Size: 28
Description: Highly portable phydium weapon resembling a machine pistol. Capable of penetrating shields/walls. No ghost sight ability to allow for target acquisition through walls, however.
Orion ISR (Interdiction Sniper Rifle)
Magazine Size: 12
Description: Long range semi-auto rifle that has an extremely slight arc, low recoil, and moderate firing speed. Is reloaded quite easily. Extremely advanced firing coil system allows for much higher ballistics velocities than other rifles of similar style.
Magazine Size: 84
Description: Heavy Machine Gun held from an over-shoulder strap with two hands. Fires 14 mm Compressed Incendiary Core shells with fragmented tungsten plating designed for deeper bullet piercing. The bonding between the tungsten plating on the shells is thinned out so as to allow a quick rupture whilst inside the enemy, or functions as a high-impact anti-armor round. Magazine is fed by pushing forward the ejection handle and feeding a new clip into the center of the machine gun. The rounds in the clip are pulled into the magazine by an autoloading system.