OPPOSING FORCE 2 IS...
An unofficial sequel to the award winning Gearbox Software game: Half Life Opposing Force. Currently being developed by a team of experienced developers, who are fans of the original title.
The game is a Half-Life 2 Episode Two modification, which is all you will need to play it. This also means the game will be free. The game will be released in chapters, the first chapter is planned to come out at July-August 2011.
A demo, showcasing some work in progress was released back in January 2011 and can be downloaded here
To keep tuned, check out the ModDB page here or the forums here for exclusive media.
The Opposing Force 2 Team.