Left 4 Dead 2 behind the shoulder as Jill Valentine, with the S.T.A.R.S. team and RE zombies from your own RE HD copy.
Jill Valentine walks the streets of Left 4 Dead 2.
Press Play and you're dropped into Dead Center: The Streets as Jill, with an over-the-shoulder camera in the style of the Resident Evil remakes. The rest of the S.T.A.R.S. team fights beside you: Chris, Barry and Rebecca take the other survivor slots as bots. Every common infected is redrawn as one of Resident Evil's own zombies.
What changes
Your own copies You need Left 4 Dead 2 and Resident Evil HD Remaster (Steam). No Resident Evil files are included. The first time you press Play, a small converter reads Jill, the team and the zombies (models and textures) from your Resident Evil install. It fits them onto Left 4 Dead 2's skeletons, so they use L4D2's own animations, and saves the result as an addon in your L4D2 folder. This takes about 20 seconds.
Solo play. Survivor voices and animations are still Left 4 Dead 2's. To remove the characters from Left 4 Dead 2 after uninstalling, turn off Stars 4 Dead in the game's Add-ons menu.