Pulse Crossbow

Here is my weapon idea for game called "Unreal Tournament" Pulse crossbow is made to shoot energy balls in rapid fire as primary fire, as alternative fire - charged ball of lightning, hold down trigger to charger it and release to fire. Alternative fire is charging small lightning ball that deal damage in spherical area of 2 meters diameter. Weapon originally supposed to be a SMG weapon but later on in building process I thought it will be a good idea to make it as crossbow. As ammunition weapon is using fluid plasma in canisters.