I just went and check both in code and tested in the Compelo on the top right.
While you can take the CV just to the edge of the map, you can NOT take it off map. I state again you can NOT take the CV off the map.
But there is a bug with the very last vertex of the terrain. Cause the terrain to do strange things. All terrians should have 1 mile of water grounding them, and most do, but his is causing an issue with Compelo.
HiTech