Are you posting this from the internet or from Desura? Install Desura, then view this page from that app, and at the top of this very window it says, "Install Mod". Click it! Obviously, you need Half Life 2, Episode 2 installed through Steam first, though.
bradleypariah
Bradley joined
I typically only play a game if it has one or more of these things: Action, role-playing, shooter, & a good story. I typically dislike liniar games. However, there are always exceptions. I typically game for about 35+ hours a week. I rarely play online, but you might catch me playing Global Agenda, Star Trek Online, LotRO or Left4Dead once in a great while.