The Portal Characters have finally made it to L4D2 my friends. Now go out and show those infected what a Mute, a Bipolor Super computer, and two free spirited robots can bring to the game!!!!
after ellis survive the outbreak, he join s.t.a.r.s. to stop the zombie apocalypse.
read changelog to see changes
credit to crowhitewolf for the new s.t.a.r.s. patch