Author KiLLeR Date of release Not yet released .bsp filename sc_scbros_lobby, sc_scbros_bm, sc_scbros_racex, sc_scbros_mb, sc_scbros_xen, sc_scbros_glair
Snow Bros reference.
Only arcade map. There is Floor 1-10, passes in the Black Mesa. Floor 1-10 boss is Gordon Freeman. Later, there is floor 11-20(next floors) passes in the racex(in the xen). Floor 11-20 boss is Gene Worm. Next floor(31-40) passes Military Base, so HECU Base. 31-40 floor boss one osprey, one apache helicopter and HWGrunt. Finally, 41-50 floor passes G-Man's place, so G-Man's Lair. This is map fact boss is G-Man.
G-Man captured XEN crystal. The Sven Co-op players take the news, try to save XEN crystal.