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...
Excellent mod with nice mapping, good voice over work and a good mix of combat/puzzles. I would point out that the map layout was very linear with no real alternative routes, this is both a good thing ( it never got confusing or unclear as what to do) and a bad thing ( I got through the game quickly due to a lack of exploration).
Highly recommended.