Re-enter the Half Life Universe and revisit City 17 in the time before Freeman, in this fan made single-player mod. The Resistance is threatened by a decisive Combine assault, and as a wanted Resistance member you will need to fight to escape from the Combine's clutch. At the same time, a mysterious force is working towards ends unknown...

dark_stardragon says

9/10 - Agree (1) Disagree

Ending felt a bit on the short side, I guess I just enjoy playing half-life2 so much that I never want to stop it. Haha

But this is a great mod, interesting sidestory.