Valve has announced it's preparing an extensive update to Counter-Strike: Source, with the update currently in beta testing.

The update includes a host of new features and functionality developed in collaboration with Hidden Path Studios. These include 144 new achievements, a new domination and revenge system, player stats, and more.

The beta will run for a limited time, and once complete, the update will be rolled out to all Counter-Strike: Source owners for free via Steam.