So this is just an idea i thought would be something a modder would be interested in.
So i was thinking, why not add more weapon mods to the game or different variants (looks) for the current weapon mods in order to customize the looks of your guns even further. you could also add new abilities for your guns with the new mods (optional maybe?). so now you get more customized and personalized looks for your guns but also new effects and abilities for them too.
i dont know if this is even possible because i really know nothing about making mods, but i didnt think you could change the looks of your guns enough with the current mods. Dont get me wrong i think the game is still awesome, just an idea i thought would make it even better.