The original Boomstick as one handed ranged weapon, should be available in the game. With lower dmg/dps than two handed ranged weapon and higher speed. Class availability like any other ranged weapon.
Then you could potentialy also implement a one handed crossbow.
Then a one handed ranged dual weid could be also implemented as warriors have for one handed melee.
Dual wield with one handed ranged could be a nice alternative dps/pvp area using also the marksmanship skill tree.
Keep in mind in the move we have a scene where one of dwarf engineers is giving a one handed Boomstick to Arthas.
Any thoughts?