The sample_map.zip file you have requested: Modifications / Paintball / Map Making / Sample Paintball II Map - 17.17kb is not available. Perhaps try browsing all files for the game Quake 2 and upload any files you want to share or are missing. This is the only information we could locate:
This is a .map which you can use to get a better understanding of how to make maps for Digital Paint Paintball II. It includes support for 1-Flag and 2-Flag CTF as well as Deathmatch.