Hi, TheKid. Err, no unfortunately I haven't learned using vJass -_-' I thought of it as a "spell" because the unit would have an attack which is different than this (it would be a close range vulcan gun).
I'm intrigued by your suggestion that it would be a projectile system, and if it's not too much trouble for you I'd like to see how it works.
I'm also wondering what you mean exactly by "having other projectiles in the map". But whatever it is it seems interesting haha...