Capcom and Valve are pleased to announce the Resident Evil® 6 x Left 4 Dead 2
project. This crossover project between two of the interactive
entertainment industry’s most respected publishers will see characters
from Left 4 Dead™ 2 featured exclusively in the forthcoming PC version
of Resident Evil® 6, while enemies from Resident Evil 6 will invade the
PC version of Left 4 Dead 2. All content will be made available
completely free for fans of either game to access and play.

Owners
of Resident Evil 6 PC will be able to select one of four survivors from
Left 4 Dead 2’s iconic cast – Coach, Nick, Ellis and Rochelle – when
playing PC exclusive mode, The Mercenaries No Mercy. Each character will
have a special customized weapon load-out created just for use in
Resident Evil 6.  In addition to the four survivors, two of the infamous
Special Infected zombies from the Left 4 Dead franchise – the Witch and
Mini Tank – will also make a cameo appearance in this mode,
relentlessly attacking players regardless of whether a character from
Left 4 Dead 2 or Resident Evil 6 is chosen. This new and exclusive
content will automatically be downloaded in the background to all owners
of the PC version of Resident Evil 6 from April 5.

 

 

Read on

http://capcom.gamespress.com/releases/338

Well...okay then. I already have L4D2 and I pre-orderred RE6 on steam so i'll have to check this stuff out, assuming I can(graphics card seems like it might be dieing on me).

http://www.capcom-unity.com/brelston/blog/2013/03/15/help-put-re6-characters-into-left-4-dead-2

Sounds interesting.  I like the idea of crossovers in games, Capcom's always been pretty good about it.  Street Fighter x Tekken was pretty sweet, and of course the Marvel vs. Capcom series.

Meh. Always nice to have free content, but I could take or leave it. Stuff like this always tends to be half ass.