Yeah we tried this using Time Dilation, but for some reason the Time Dilation doesn’t seem to have any effect on PhysX objects or actors.
What we really should do is write our own movement code, and then simulate it really quickly to leave behind a trail of points. I just wish I knew how Gears did it… they managed to do exactly what we’re looking for with their Grenade and Torque-Bow aim trails. Even Rama has tried it before in UDK but to little avail (still requires time to make the trail, ours needs to be instant)