User blog comment:Argorrath/Treyarch posts a message of zombies; possibly hinting to a DLC 4/@comment-11106160-20130801033547/@comment-11106160-20130801191109

WTH, Gmail? Didn't tell me about this. I know I could be veeeeery wrong, but it doesn't seem like it could be anything else. Try reading the letters in their voices, then tell me what you think...