Survivors. "Tango Mike" is "T.M." as spelt using the NATO Phonetic Alphabet . This codifier almost certainly originates from the infamous real-life asymptomatic carrier " Typhoid Mary ", who shares the acronym "T.M.". Read more The Infected The Survivors Green Flu Retrieved from " http://left4dead.wikia.com/wiki/Carriers?oldid=132225 " Related Categories Categories : The Survivors