Bohemia Interactive has issued a full statement on the recent arrests of two of their employees for espionage in Greece. Also, Kotaku notes that this website is online to support the pair, and VG247 has the full text of the statement, which claims the co-workers were taking a vacation together during crunch time. Here's a bit that says they "hope" (as opposed to know) "that the whole situation is no more than an unfortunate and deep misunderstanding.":

Having travelled there, and after meeting personally with them both, as well as their lawyer who is fully acquainted with the Greek authority’s investigation file in detail, we can assure you that these insinuations are completely false and without substance. These employees – our friends, Ivan Buchta and Martin Pezlar – visited the island as tourists. Their holiday was a product of their interest in the island, triggered by their work on Arma 3 over the past two years of development.

They took photographs and videos in public areas, as countless tourists arriving to enjoy the beauty and hospitality of Greece may well do. These included a short video as they drove through the main road passing around the international airport, where in one short part of the video off in the distance some hangars and other buildings of the complex can be seen. It’s very likely that many tourists may have pictures similar to those taken by Ivan and Martin in their own family albums, without being aware that they put themselves or their families at risk.

We sincerely hope that the whole situation is no more than an unfortunate and deep misunderstanding. The in-game Limnos is close to completion, and it’s far from an identical replication of the real place. It was heavily modified to fit the game’s backstory, a purely fictional 2035 setting. It was rescaled to only 75% of the real island, and it does not attempt to display any real world military installations situated on the island of Lemnos.