this grenade launcher is a special ammo exotic grenade launcher. Multiple rounds in 1 magazine. reserves 30-50. The shots fired creates a blinding smoke cloud on the ground in a bigger radius than blinding nades. blinding nades are often used for GM or hardes contents. The clouds deal less damage, but a little bit more than smoke bombs. Since the clouds act like le monarque poison (damage over time) the grenade launcher can intrinsically stun overload champions, would be better option than scouts, auto rifles etc, like le monarque because of the lingering smoke clouds and can replace blinding nades. The catalyst could also turn yourself and allies invisible, making GM snipers less dangerous and greatly increase the duration of smokeclouds. pvp use probably would be like smoke a corner to run past them, but it doesn't slow guardians down like smoke bomb, but still blind them. weapon sights like seraph or europa weapons can still see outlines like in the snowstorms.