PS2's faction diversity has quickly devolved for all 3 factions. TR became speed and Dakka, NC became shields, shotguns and high damage profiles and the VS got hover tech and a whole lot of ammo shenanigans. And that is a shame, there is a lot or leeway in the lore to improve faction diversity without overpowering one or the other: VS discovered and activated the Rebirthing grid and have the most understanding of nanites, they are the scientists of the bunch, they could expand on their antigrav sleds and knowledge of existing technologies in the game. The NC is a guerilla force who uses a mixture of experimental weaponry and any industrial equipment they can get their hands on, which is also how they invented the MAX by adapting a heavylifter suit. They are build up out of the workers, security forces and mercenaries that the corporate groups send with the expedition. And yes there is the notion that if you could have put a bigger gun on it, you should have. The TR is officially a military group, but for more than a century they functioned as a heavily armed police force. Their weapons are based on the tried and tested technologies combined with the training and experience of quelling small rebel groups and guerilla's both in space and on the ground. These traits can easily be added to the 3 factions to enhance their ammo, weapons selection, gadgets and utilities. VS: weaponized nanites can disassemble living and moving targets as they move through, or semi-randomly alter their structure to hamper the operation of infantry and vehicles. Nanites could also be used to buff friendlies for a short period of time as their bodies and vehicles are streamlined. Their antigrav technology could be used to push and pull objects, like an item that pulls in and eats one enemy grenade to protect people around it or reducing the bullet drop on weapons equipped with it on the ammo. As scientists they would also have the besr knowledge about electronic warfare, hacking into enemy gear and vehicles to hamper their functioning. NC would have a lot of repurposed industrial equipment. Welding equipment and plasma cutters could be altered into flamethrowers or shooting a cone-shaped explosion in front of you, industrial chemicals like Phosphoric cleaning agents coulf easily be weaponized (and even the ****'s thought it was too dangerous to try with their tech). The NC would also have copious amounts of industrial explosives, which could be cheap with alternative detonation methods like timers, fuses or red-barrel physics where you have to shoot it to make it go off. Experimental weaponry can be powerful but have potential backlash to the user. A weapon shooting electricity could have an increasing chance of arcing to the user if you dont let it cool down for example. The TR are harder, they could have things like tear gasses to nerf enemies, chemical warfare like mustard gas, utility ammo like the 12-gauge FRAG slugs (both an HE and a HEAT variant for light AV duties exist!), a variety of quick-deploy barricades and cover and more of that kind of stuff. The goal wouldnt be to make a massive variety of new guns and gadgets (at least, not in the short term), but to give each faction a selection of unique choices for their equipment. If each faction can select some unique ammo for ALL infantry weapons and even some to vehicle weapons you can greatly change faction diversity.