arg...
I'm on the same situation, too. The Strider keeps shooting that crank and doesn't open the way to the right. Even after 10 minutes the Strider just keeps shooting and doesn't notice me. Any help?
My CS: Source doesn't crash or freeze, but the game lags. When I shoot, shot can be seen and heard about 0,2 secs late, and it's very frustrating. Also my fps is 5-15 all the time.
Actually, I hated the green ammo boxes because every time I saw one, I knew there would be a big fight soon. They kind of spoiled the all cool moments of the game :P.
I deleted HL2:DM local content and double-clicked on its Steam icon. It says 94% ready. How to get that missing 6%?
EDIT: No prob anymore, Steam seems to update it by itself :)