Here is one link.
http://www.flashpoint1985.com/cgi-bin/ik...ST;f=69;t=61431

To make them work you have to edit existing missions. They also do not work for custom ammo unless you edit the script inside the tracer addon. Also they do not "replace" the BIS tracers so to remove those you also have to edit the weapon.pbo config to remove them. I think there already is a mod for that somewhere but I did my own. Now with my setup I've edited a few sp missions I always play to use them and removed the default tracers for small arms ammo. Since I don't play MP this isn't an issue, but for MP there would be issues.