The sandlock.zip file you have requested: Maps Levels Missions / Deathmatch / S to T Titles / Half-Life 2 DM Sand Lock Map (1.0) - 5.8mb is not available. Perhaps try browsing all files for the game Half-Life 2 and upload any files you want to share or are missing. This is the only information we could locate:
SandLock V 1.010-18-05 8:23By Lawrence YoungSource Map (works with Death Match and Gmod)Content is based of Half-Life 2 copyright ValveContent built by Steam HammerPlease do not redistribute this map without this readmeif you This is Sandlock, a combind lab that test on atlions. Close to the explosion the lab as contain some damage but for the most part remains intact.