Do you have Left 4 Dead 2 and wish you can play with the L4D1 survivors helping you at the end? Well your going to love The Passing. The L4D1 survivors meet the L4D2 cast! Do you like Bill? Well I have some bad news: In The Passing Bill died. In The Passing there are only 3 survivors left and they are: Francis,Louis,and Zoey. The good news is that the 3 L4D1 survivors will be covering you in the finale while you collect gas cans to fill the genarator. After the genarator run back to the car and escape but Francis,Louis,and Zoey will be left behind. If you completed the other 4 campaigns and The Passing is your last one to complete. After you complete it you will get a achevement and a avatar award! Thats all for now. See ya!