In short, a great stress relief to play this game in every sense of the word.
(Foul language, violence, and the system LOOT greatly improved and the introduction of a point system brutasse obtained through the challenges set by goals. These points can be distributed between the accuracy of the weapon, the damage to enemies, etc ...
These points are cumulative for all characters on the same system (PS3) :)
I recommend you to discover solo play (for the course 1), then to the course 2 multiplayer. And then to increase the lifespan of the game to do the same with the other 3 characters, see 4 if you have pre-ordered the game by getting the character of mécromancienne from 16 October.