Well im watching my fiancé playing the expansion right now. And well OMG Im so happy to see Zoey back and Bill. And Bill stills telling Francis off for being useless xD. To me they are by far the best. Feels more L4D to me now with the option to play as them!! :)  
 
Only thing me and my fiancé agree on is that, they seem to know what the "new special infected" are, when they never seen them before, so kinda the dialog would have been good if they said. WTF is that!! or something like that. But oh well.  
 
So what are your thoughts!!! :) Are you glad to see the characters from L4D on L4D2??  The ending!! TANK CRAZY BANANAS WOOOOOOOOOOOOOOOO!!!! Heart pumping mutherfuckers!!! Who you sacrificed!!?!??!