For those interested there is a new ArmA III dev blog up on the BIS website called Czeching out Lemnos
It's about how BIS collected reference material from Lemnos itself.
Back in 2010, a crack team of Bohemia Interactive operatives deployed to the Greek island of Lemnos. Armed only with recording equipment and their deadly sock-and-sandals combo, they completed a mission to document the mysteries of the Aegean.
Fieldtrips such as these are an important part of Arma 3's development; gathering materials from the field has been a central part of creating Limnos (our ~300km2 in-game interpretation of the Greek island of Lemnos). While new technical improvements to lighting, particles or clouds technology gives us the capacity to build amazing worlds, without good real-life references and old-fashioned boots-on-the-ground research, it couldn't ever be as authentic as we want.