If they found a way to do this without touching the current weapon subclasses I think this would tremendously better each class. In fact I feel like it would be rather simple from a design perspective. Hunter: Bow/Crossbow - I think these could be coupled with the three damage elements of the game to bring more focus to those damage types. Have the perks focus solely on elemental damage, like maybe an elemental creep or damage boost or stun or what have you. As for legitimate weapon mechanics, I think it could work similar to the bow in Crysis, dealing high single shot damage with a slow rate of fire. The crossbow would function more like a nailgun and less like a cross bow, firing automatic bolts but dealing leas damage. Warlock: SMG/ Dual Pistols - would function almost exactly like the SMG and Dual Pistols in Halo. I could perhaps see a mechanic where it works more like the Plasma Rifle and has a charge time, and the ammo actually comes from the Warlocks magical power. Have perks reward kills in succession with higher damage, or a damage multiplier based on shots landed. Titan: Mini-Gat/Grenade Launcher - so I am thinking this would work similar to Halo's turrets. When using the Mini-Gatling or Grenade Launcher your character's maneuverability would be cut severely. Perks would be defensive rather than offensive, providing a defense buff for number of shots fired or players killed, compensating for being extremely vulnerable. These are just a few ideas, but there is really potential for a bunch of.unique weapons for each class, and Bungie would be missing out if they didn't expand on the class system in some way.