Camcreate your arty. Or use a knowsabout command but that might not work. Some arty works diff ways...
I couldn't give the readme, I deleted it a while back casue it was in dutch.
Known habits of invisible targets:
-AI always goes for target instead of reg infantry
-set life of one is a long time, troops may run out of ammo trying to kill them, best to delete after a bit
-good for making helis do random rocket attacks
-can serve as a suppresive fire technique for editors
-laser is great for makin A10s do bombing runs
-I have no idea what IR targets are targeted by
-you cannot use waypoints on them
-bullets go right through the target
They're fun to use. One time I put fifty person ones in front of an abrams and put 80 yank machine gunners farther in front of the abrams, I watched and after a few minutes on 4X the abrams blew up, killing all. Enough machine gun bullets puts an abrams down... ;D