Activision will be hosting a Free Weekend for Call of Duty®: Black Ops ! Pre-load the game now and be ready to play when the free weekend starts on Thursday, June 2nd at 10am Pacific Time.Click here to start pre-loading, or visit www.steamgames.com/about to install Steam.The Free Weekend of Call of Duty®: Black Ops will let you play the entire multiplayer portion of the base game.