screen shot of what it looks like is enclosed below to help explain. the platform the character is on moves back and fourth. mid path there is a trigger box that causes the missiles to spawn wit the blue flame attached. i did mod a fire particle system from the content examples. changed the color and loops and life span to get what you see in the screen shot. after 2 secs the missiles auto destroy if they don’t collide with the character or the . i have a delay in between each of the missiles so with the life span of 2 secs i never have more than 4 at a time on screen.
the bug a boo with it is if i stay on the platform and let it go back and fourth re-spawning the missiles my frame rate takes a dive like i cranked up the metro benchmarking on ultra. it goes back to full speed again after about 15 secs or so after i get away from the trigger box.
just for the eye candy i have all my bullets explode on impact with one of the explosion particle systems that come with the engine. i can fire off those all day and no frame rate drop.