Halo 3 Forge. Need Help

I've made a racetrack where 1 sniper is shooting people on mongooses. You probably know or played what I'm talking about. I'm almost finished except for the very last part where the surviver kills the sniper. I'm not sure how I'm going to do it yet, but I'm hoping to find a way to make fusion coils fall on the platform (where the sniper is) on command (by maybe with the custimizable camo) I'm not sureif it's possible though. Any help would be appreciated.

Yeah I've played a gametype like this! On the one i played there was an smg and 4 overshields and a teleported to the sniper's tower. However, if you want to use fusion coils, the only thing I could suggest would be a teleporter at the end up to a platform above the sniper with the fusion coils on a wooden platform/crate and a sword to smash the crate so the coils will fall on him. Hope this helps :D

lol, I played one like that, execpt we didn't use mongeese, but it was an obstical course. We just called it Duck Hunt, but yeah teleporters