This map was leaked in the 2003 Half-Life 2 Leak as part of the VMF map pack. It's in both the root of the VMF map pack and /john/ai_testmaps however they are identical versions. It was created to test NPC navigation through hallways, hence the name. Materials used: * sky_wasteland02 * DEV/DEV_MEASUREGENERIC01B * DEV/DEV_MEASUREHALL01 * DEV/DEV_MEASUREGENERIC01 * TOOLS/TOOLSSKYBOX * DEV/DEV_MEASURESWITCH03