Operation Black Mesa is a Half Life 2 modfication remaking the second installment of the award winning Half Life series, Opposing Force. Utilizing the immense array of features of the Source engine, the Operation Black Mesa team plans to remake Opposing Force in all it's glory. What we plan to do is remake everything from the 3D models to the maps, so that Opposing Force can once again be praised as one of the best expansion packs for any game to date. We here at the Operation Black Mesa team wish to comprise both single-player and multi-player elements into our modification.