The ballista window states that it has 24 shots. With each shot, it loses one projectile, and the count goes down to zero, then into the negatives. What do you mean when you talk about encoding bugs in the engine? Is the fact that the ballista window says it has 24 shots a bug in the engine's encoding? Maybe you're confusing the ballista with a catapult? In other versions of the game, besides versions 3 and 5, I don't think there are any other siege weapons? Am I wrong, or are you?