This is a 100% Overkill made mission for Payday: Heist simply set in no mercy hospital from the Left 4 Dead series. It is not telling the origins of the Infection and is not canon. There is a little cameo from one of the L4D characters (the comic should give you a hint) and a fun little easter egg with a payoff later in Left 4 Dead. Just us having some fun with a studio we are friends with and who have also made a great co-op game.

As perceptive gamers will have noticed, several hints have recently been dropped into Payday The Heist, which has led to various rumours. We are excited to be able to confirm that an in-depth collaboration between Overkill and Valve is currently in production. We are working on a very cool blend of Payday and Left 4 Dead.

Masks of Disguise: Feeling stately?Presidential masks are now available to those players that have reached level 145. Players can grab a Golden mask when all heists are completed on OVERKILL 145+. BEEEF masks have also been added to the game, and can be picked up in the lobby.

OVERKILL 145+: Players that have reached level 145 can now play on a new difficulty called OVERKILL 145+, which opens up the possibility for new events and achievements. It also unlocks new weapons, such as the crowbar to open doors, as well as leaderboards.

DROP-IN: With the added in-game drop-in ability, players can set the server to allow for others to join the game mid-heist. Players can also filter players by setting server reputation and difficulty requirements.

SWAT Tactics: The SWAT captain has trained a slew of new recruits, resulting in challenging new tactics and counter measures for players to face on each of the heists.

Sweet Moves: Players can check out new weapon animations for the Shotgun. Law enforcers now move more tactically than ever before. Even civilians have new dance animations in the DIAMOND HEIST.

Portrait Window Additions: Players can now see the name of the character they are currently playing in the portrait window while in game.

Compare Worldwide: PC Players can now view statistics on how many players in the world have completed the different heists on all difficulties through the "SELECT HEIST" menu.

Expanding Field of View (FoV): PC Players can now choose what FoV they want to use ranging from 60 to 100 through the advanced graphics menu.

DIAMOND HEIST Music: For PC players, as a token of appreciation to the community, 200 of the most dedicated career criminals' nicknames have been immortalized in-game. The DJ has added a new music track, doing shout-outs to 200 players in the community.

We know you all have been waiting for this announcement for some time and we sincerely apologise for any inconvenience the delay may have caused you. [...] Soon you will be able to dive full force into complex death defying heists, while enjoying hours of replay in search for the next 'big score!

Word on the street is that to pull off the biggest score, a heist must be planned and outlined to the very last detail with perfect team members, unbeatable weapons and unrecognisable disguises. That being said, SOE & OVERKILL Software need a little more time to assemble the ideal squad and attack strategy for our highly anticipated adrenaline-pumping first person shooter, PAYDAY: The Heist.

With this in mind, SOE and the talented OVERKILL team have decided to push PAYDAY’s official launch day to later in October, ensuring the overall game quality and potential score for all heist team members.