EFS is a single-player FPS modification for Half-Life, inspired by games like: Half-Life, Max Payne, Deus Ex, Metal Gear Solid, F.E.A.R. (+Addons) and movies like: Apocalpyse Now, Jacob's Ladder, The Manchurian Candidate (original and remake, The Raid: Redemption and many more.
Random Place....:P
try to fix the arch for match with the hole.
yeah yeah i working on the map ;)
try to select the arch , the select the vertex tool
select the up side and press alt+E
You can use the particle system for dustmotes!