Kane & Lynch 2: Dog Days features a number of multiplayer modes including Fragile Alliance, a mode that makes a welcome return from the first game, where all players take on the role of thieves who must pull off a heist and escape with the goods. However, should any of the players die in the middle of a game, they will instantly return as police officers whose goal is then to take down the criminals.
Another interesting twist is that at any point in the game you can decide to turn on your teammates and slay them in an attempt to make it out alive with all the money for yourself. Be warned though: doing this will make your escape much harder, so it's best to gain some experience before going rogue.
In Arcade Mode, things play out in much the same way as they do in Fragile Alliance with one exception: your teammates are all computer controlled. Once you have completed a round in Arcade Mode, the difficulty is increased. In Undercover Cop Mode, one player is designated the role of police officer without the other players knowing. That player's goal is to then take down each of the villains without getting spotted by his criminal cohorts.
The final multiplayer mode in Kane & Lynch 2: Dog Days is a team objective based game where players are split into two groups - cops and robbers. The thieves are tasked with stealing money from a location and making it out alive, while the players controlling the police are posted at the exit and must defend it in an attempt to prevent the others from escaping.