Late Britain is a Left 4 Dead 2 campaign which brings a British environment into play; rather than an American city or town filled to the brim with weapons, the survivors will find themselves using what they have in a world with almost no firearms at all.
A blockade stops the survivors from simply charging down the hill, instead they must take a dangerous route through and over 2 of the houses to surpass it, which ultimately ends in a one-way drop, complimenting the infected team in versus battles.