I've been searching for a playable Rocket Race, Rocket Hog Race, and/or Splocket Race gametype on Xbox one (preferably Halo 5, but something in MCC is fine too) and I haven't found anything that works. I had hoped I'd see something out there with the release of the new Forge tools, but the one Gametype I found in the file browser doesn't seem to work or doesn't have any corresponding maps. I poked around a bit in Forge to see if I could figure it out, but I'm such a novice with it that it seems hopeless. If anyone can point me to one, thanks. If anyone is working on one, I'd be happy to help however I can.
While no one I know is working on one, my thoughts shied towards halotracks. I looked in the forums and it doesn't look like anyone has posted anything YET, however I would think about asking around there. If that doesn't work I'm sure there's someone on this site capable enough of coming up with one.
Yeah, after posting this I poked around on Halotracks but didn't find anything. I'll post it up over there and see if there is anyone working on it. I watched ducain23's video of how to make a regular race map, and I'm guessing that's the starting point for Rocket Race.