having an attribute system for some simple things such as gun specific damage and critical chance attributes would be wonderful.

I'm trying to put together an rpg-esque modpack and i've noticed there is no gun mod available which adds such a thing.

I've added some attributes
"flansmod.impact_damage_multiplier"
"flansmod.splash_radius_multiplier"
"flansmod.time_between_shots_multiplier"
"flansmod.shot_spread_multiplier"
"flansmod.vertical_recoil_multiplier"
"flansmod.horizontal_recoil_multiplier"

Could you test that they work?