IMPORTANT :
For whose who downloaded an old version please delete crystal_mission_1.bsp, crystal_mission_2.bsp, crystal_mission_3.bsp and crystal_mission_4.bsp
Delete cross_paths.wad, halflife_hd.wad and jpsecurity.wad too. Then download the new zip file and repace all the files with the new version
Links
MODDB
Scmapdb
Gamebanana
Video
Screenshots
Dang, the mapping is insanely good.
Thanks I hope you will test it :)