You mean like the Fiend's Laser RCW? And spears are great. It's simple, really. Wooden Spear - basically a sharp stick. Spear - with a metal ironhead. Boar Spear - with prongs on the side to keep the enemy a bit back. Javelins. A 'mod' could be a atlatl or Amentum to give it some range and damage. A super Spear could be like a tech thing - using springs to push the head forward? Then energy or shock pikes, power lance, that sort of thing.