Please, check out my HL2 movie! "Seven hour war"
http://www.youtube.com/watch?v=RVuqIuCCpT8==
Take a deadly walk through the City 17, straight from Half-Life 2 ep 1.
Fight your way from the very bottom of the town to the trainstation and... well, escape.
1st contributor sure is Valve
If your game crashes or something like that, try to:
1) turn off any other add-ons and/or verify integrity of the game files
2) not play on modded servers
