Developer Overkill has released the latest DLC pack for PAYDAY: The Heist - a new level set inside the hospital in Left 4 Dead's 'No Mercy' campaign.
The new stage lets you take part in a heist in the recognisable hospital, with cameos and other L4D-themed easter eggs to discover.
Valve recently sought to clear up any 'confusion' in confirming that the new DLC is not an official prequel to Left 4 Dead, but is simply them "just us having some fun with a studio we are friends with and who have also made a great co-op game".
The new DLC is available now to all PC owners of PAYDAY. Here's a new gameplay trailer.