This is nearly perfect! I do hope you plan to adjust it graphically here and there, to add more of a Halloween feel. I think that sky_harvest_night_01 would make a better sky for this map, but that's just because it's my favorite sky. Another small detail, I noticed that the skeletons didn't move or do anything, so you might need a .nav file for the map, and there was no book icon on the HUD. For some reason, I want Merasmus to spawn on the map, and wish that there was a wheel of fate for each capture point.
I know absolutely nothing about mapping, so my suggestions are potentially impossible, or extremely difficult! You've done more than I can, fantastic job!