Since no one has suggested anything yet I thought I'd share what I've been thinking.

Attention: the stats shared here will not reflect the stats that Valve, if it wants to add this weapon to the game, will choose.


Fires a single projectile that deals 70 base damage.

The projectile will fly at a speed of 1500 hu/s.

The weapon reloads 1 arrow at a time.

Has only 16 reserve ammo.


The weapon changes the Heavy from a class that has a close - medium range advantage to a class with a medium - long range advantage. But for that, heavy trades his minigun, a continuous damage hitscan weapon, for a ballista, a weapon that fires a single projectile that is faster than a rocket but slower than an arrow.
A strong weapon able to one shot a Kunai Spy (with no backstab), two shotting Scout, Spy, Engineer and Sniper, and three shotting Medic, gunslinger Engineer, Pyro, Demoman and Soldier. But for that heavy will have to hit his shots consistently, after all missing a shot will make the heavy have to reload his weapon and it will probably have a slow reload.

Its low reserve ammo also makes the heavy end up running out of ammo easily, especially when entering long fights.