I'm using an older version of the Gametype Library, so this may have been fixed already, but I'd like to bring it up anyway because I'm too lazy to look through and see I used this to set up a single-stage payload level. However, the cart could not be stopped by RED standing next to it. I fixed this by having the control points refer to "RED Previous Required Point 1" with their own name (i.e. cp_one has RED Previous Required Point 1 filled in with "cp_one"). I had a similar problem with this when making a CP map a while ago so that's how I knew how to fix it, but it was a real baffling problem that had me stumped for a while. Like I said this might've already been fixed, but I'm just throwing it out there.