You could be right there?...I honestly havent a clue though..
I would of thought that everyone is being screened, not just the host of a game...
Imo its just cus host has to accept everyones info and work with it so it can change and vary with player to player...
Host is different in blops 2...it picks host for the best connection for everyone to connect with each other, its not about who has the best connection anymore...
Ive played a whole night once, getting host every match and im playing with mates that have super elite fibre optic blah blah blah broadband, so its picking my normal adsl BB over fast optic BB because mine can distribute the connection of the whole room better....get it..
I love getting host but its only cus i dont have "amazing" broadband