There is an incompatibility between Hexen v1.0 and v1.1 in the number of multi-player starting points. v1.0 supports 4 players and v1.1 supports 8 players. Levels developed for v1.1 will not work in v1.0. If levels are uploaded in both v1.0 and v1.1 versions, we keep only the v1.1 one to conserve space. If a level doesn't run, you are probably running Hexen v1.0. You can download the patch to upgrade to v1.1 from:
/idstuff/hexen/hexn11rp.exe in this archive. Questions? Contact idgmaint@gamers.org .