I've been playing Left 4 Dead 2 over many years and recently in the last couple have moved over towards PC as the primary spot of play over Xbox 360. This was mainly due to the expansive modding community and amazing support they have for the game while the regular console version hasn't seen anything new in a long time.
After playing so many custom maps and downloading tons of mods to change the whole game I have always requested a Cortana mod. I mean we have every other character and side characters from Halo it's weird not too have her. Even further more the voice of Zoey in the game is also the same voice as Cortana (Jen Taylor).
So after trying to contact many individuals that mod as I just don't have the knack for it myself, "MonkeyRebel117" has finally made one. I'm so happy to have this in my game for my future Survival video outings and other campaigning. Will add links to download the mod for L4D2 and L4D2 respectively below. Will also mention the video will promptly display Cortana and is on the map Downfall from Mike Gonthier.
Cortana Left 4 Dead Character Mod
Cortana Left 4 Dead 2 Character Mod