This is a Half-Life map on witch you test the weapons in a shooting range. If you don't know how to install it I can tell you, first go into program files or program files(x86) then go to steam\steamapps\common\Half-Life\valve\maps and place shooting_range1.0 . And you can just boot up half life click on create server and select shooting_range1.0 as your map. If you have any questions or sugestions writhe them in the comments.
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