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...
It is a really great mod in almost every aspect, and I have just way too much to say about it.
Unfortunately, I am only giving it an 8. It just seems too short, and the lack of a flashlight can be a very big problem.