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Graffiti is found all over the five campaigns of Left 4 Dead2, most commonly within the safe rooms. The graffiti is left by other Survivors who had been through the area. This graffiti generally includes messages, tips, and warnings for loved ones, other Survivors, or simple comments, such is the case with the infamous Chicago Ted. Graffiti tells the story of the game, without cutscenes. Some pieces of graffiti seem to be conversing back and forth.
- NOBODY IS COMING TO SAVE US. THEY ARE GOING TO BOMB THE CITY GET OUT
- Safety checklist poster with 'NOT AIRBORNE' written beside it, specifically directed at "SECURE THE DOORS AND WINDOWS WITH PLASTIC SHEETING AND DUCT TAPE."