How to add smoke to a projectile?

[Lord Adherbal]

well even tho it would look cool, that rank rotation thing is only a visual matter. It doesnt have an influence on the gameplay if you balance the units right.

I've tried to get smoke working myself a couple of weeks ago and ended up with the samee conclusions as JD. The "dust" effect caused by marching troops would be ideal for the gunsmoke effect, but I haven't found a way to link it to shooting projectiles.

[Sundjata Keita]

Can someone write a simple guide for how to do this. I have been trying myself before but have not got it to work yet. Thanks.