Guns in WC3

I have been trying over the past few days to make a working "shoot" command. My original idea was to base it off of shockwave, and simply set the projectile path to be very fine with a quilboar spine (looks like a bulllet kinda) as the projectile. Unfortunately WC3 seems to have a built in casting time for shockwave, even though the casting time is set to 0. This stops you from shooting a rapid fire of gunshots, and makes you wait about 1.5 seconds between each shot. The same works for Carrion Swarm.
My friend suggested using stampede as a way to make this work, but it seems that won't work without quite a bit of jass scripting, and i would like to stay away from that as much as possible in this map.
Anyone has suggestions of a simple spell based gunshot?

Poison Sting maybe? (if you can find it) I think it's an ability, I dunno. What about shadow strike?

Base it on somthing that does not have such a delay, then when the dummy spell is used, create a dummy unit to cast the shockwave, then remove the dummy unit. That should work and requires very little triggering.

Yes that may work, my friend was suggesting having the dummy unit for stampede in the middle of where the target was, so the stampede was created to look like it came from the original unit. But your suggestion is much simpler. Ill try it out and see how it works. Though in order to have the base unit cast the spell to trigger the dummy unit, i will have to find something else that can target ground other than a shockwave (Same cooldown issue etc.)

As for shadowstrike that is simply target unit. Removes the poor aim element and replaces it with a homing art.

channel has no delay, and can be set to any order string, only draw back is if u want the computer to automatically cast it as well.

Elimination's in the map section. go check it out its unprotected. Has everything u need to know.

I did flying of the dead based on shockwaves and it doesn't seem to have a casting time built in. Are you sure you set the unit's casting casting animation times to 0?

Yep, check the unit's cast animation times, those might very well be your problem.