The multiplayer in this game is a broken mess, it bugs out and disconnects constantly, this seems to be a result of the servers being held overseas in the United Kingdom.
My advice is Do Not Play this game if you intend to play any online Co-Op with anyone, we were constantly out of sync and had to complete objectives multiple times.
Also the gameplay is short due to majority of the content being unrequired to advance the story. The whole game feels like a demo that has not been finished and should not have seen a proper release.
Positives.... achievements are short and easy to collect if playing on a steady game server.
.5