Single player maps

I have a link to single player mods, the mod will include an entire campaign that will start you on a new level and take you to the next once you have betten it.

download Ground Zero from link below, create a shortcut for Quake2 and add +set game rogue, then start a new single player game.
www.mediafire.com/file/migwmmy5zyn/q2GZrogue.exe
AND
download the Reckoning from the link below, create a shortcut for Quake2 and add +set game xatrix, then start a new single player game.
www.mediafire.com/file/4zdyjnnzzri/q2reckoning.exe
AND
download the SOG from the link below ( Its kinda like a DOOM2 mod ), create a shortcut for Quake2 and add +set game sog, then start a new single player game.
www.mediafire.com/file/tmm5ttqjty5/sog12full.exe

If you dont trust .exe files, then download them anyway, and change the file extention to .rar and then just extract them to your Quake2 folder with WinRAR www.rarsoft.com/