Carriers is a multiplayer Half-Life 2 mod being created by the Shellshock Gaming development team. It's based around a modern-day zombie apocalypse, where players must work together to survive. But now the luck of the carriers has run out, and their immune systems are failing.
It's looking bleaker.
I just saw this on the Facepunch Map Pimpage Thread, and oh my god, the atmosphere is so perfect. Words cannot describe how beautiful this looks... Keep up the awesome work.