Character creation, sub-class system with stat distribution and sub-class skills like camouflage, dodge roll, temporary buffs, ect. A lengthy campaign that increases in difficulty with boss levels every 3-5 missions. In game jukebox with a variety of music to choose from instead of just metal, music paid with dosh you've collected. End game item drops that arent just cosmetic, extremely hard endgame that requires exp grind as well as item drop grind, specifically end game raids that you wont be able to beat on the first try but with multiple mini-bosses to work through along with a final boss. Instead of a store with all weapons unlocked a cache with weapons and armor you've collected pre-game and in-game store to re-fill ammo and upgrade weapons indefinitely.