If your DONT own this, I don't think there is any help for you. Sell your steam account and move to a monestary cause only god can help you. I have prolly beat this game 8 or 9 times, not to mention the expansions, but even they pale in comparison to this. Boats, dune buggies, aliens, oppressive government agents, rockets, large explosions, plasma weaponry, GRAVITY GUN!!!! Nothing beats decapitating 4 zombies with a saw blade flung at mach 2. This may be my favorite game EVER!!!