From What i noticed in the game there is not that big of a choice of weapon's at all,Everyone is using either Gatling,Avenger Minigun,LSW,Rocket launcher,or XL Thats pretty much all I see 5 types of weapons.
"endgame" viable weapons :
.223 Pistol, 14mm Pistol, Pancor Jackhammer, Grenade Launcher, XL70E3, Sniper Rifle, Light Support Weapon, Incinerator, Avenger Minigun, Rocket Launcher, Solar Scorcher, Laser Rifle ext. cap., Plasma Rifle, Gatling Laser
thats 14 weapons, not 5
+ rare weapons (Vindicator, Bozar, Gauss Rifle, Gauss Pistol, Turbo Plasma Rifle, Pulse Rifle, HKG11, HKG11E)
if you think that other then those 5 weapons are weak then others should be boosted, what would be point of keeping in game weapons which are weak and adding new but actually they are pretty well balanced atm
more weapons are always good but such suggestion needs to be more complete like purpose of weapon, what makes it unique, useful and different from others, preferably also image, stats, what kind of ammo it should use, what it need for crafting.. just what beer linked to you