Me: Why did the hero walk on a cursed path surrounded by deadly towers while walking amongst millions of bodies? Billybobchuckjoe: Why? Me: To get the pixelated accumulation of pixels that for a gem! Hahahahahaha! Billybobchuckjoe: Man, you have problems.
Also, for the assault rifles, you could have a grenade launcher attachment that works like your grenade throwing button, just makes it go further, you can press J or a different button to take attachments on/off.
IHASIDEA for the shotgun, actually make it have pellets, so if the Winchester had 6 pellets each one would do 20 damage, if you don't want pellets here's where my next idea comes into play. Accessories shop. For the shotguns, slug rounds that are like one bullet that does the total damage. For heavy machine guns, bipods that only work while crawling, they add 5 skill points of accuracy to your heavy machine gun while crawling. For the snipers, slings that allow you to have better accuracy, meaning more critical hits (a.k.a luck), for the plasma guns, energy cores that do something ._.
+IF YOU THINK THIS IS A GOOD IDEA
There shouldbe a reward for ruining someones killstreak, like if someone got a monsterkill and you killed them on monster you would be rewarded with more than +1 exp and +1 money.