For racetrack map makers, I had the idea recently to make a racetrack go in, through, and out of a Volcano. You could use the red filters, and maybe have some falling debree that can kill you (Small boxes that fly out of the top or sides from a mancannon. There could be holes in the sides of it where the racetrack could go through, and it could loop around like that. I don't know what other Idea's I would have about it, but it would be relatively short. As for lava, take part of a track (double wide would be best) and place a killball so that is takes up a third of the track. (Inside the cano) You could aslo merge overshields in to the walls. I would do it but I suck at making racetracks. This would be a new idea and could be really cool. Instead of those generic ones in the skybubble. Sorry if this was in the wrong section.
this is a good idea,and Im sure it would turn out great if pulled off right. I woulkd bring this up with shaddoblade,he is known for his tracks.