Nice list! Plenty of guns to rank in this game, plenty of work :D Assault slugger's ammo inefficiency is not a big problem though IMHO. There's second gun and it has to compensate for inefficiencies of the first one and every gun has some inefficiencies that need to be compensated for. In case of AS, if one runs out of ammo with it often, another ammo efficient/melee weapon has to be used. When using it only when the player knows it will hit multiple enemies, there are no ammo problems. Insta-killing Lil' Hunter with YV feels good too. Also, for me Super crossbow is 10x better than super bazooka. Weapons that shoot 5 projectiles are most useful at the beginning of levels, when there's swarm to defeat and no safe place to hide, and against bosses. Super bazooka is great against bosses, but there's always a chance that enemy will spawn/ teleport right in front while it fires and insta-kills the player. At the beginning of levels, when that damage is most needed, it can be completely useless. Often 50 maneuvres while trying to find a spot where it can be shot 100% safe and still no luck :D And then comes the moment, but something spawns right in front while shooting with no visual cue... Super Crossbow clears like a charm, is good both close and far range and is always completely safe. Its downside is that because of arrow piercing properties, it will often kill enemies very far, whose loot cannot be safely collected and so often plenty of it is lost.
I think triple machinegun is a good weapon but only throu levels 2 and 3 BUT only if you use It in open spawns like wide room and like 4+ enemies in it mua clears the room in the blink of an eye feels as if you have auto shotgun
