make them fly at 90 degrees to the black hole and they will circle it before hitting it. Maybe get an invisible box fixated to the background and have an object overlapping the edge of it. hope that wasn't too complicated...
hey dude I love DOW i have soulstorm and also love 40k. I was going to make a land speeder but I'm now making a lascannon and maybe use it for a predator or land raider, and a flamer.