Milo was born to a Czech father who lived in Germany, and a German mother. Growing up, Milo was always interested in science and eventually went to university once he graduated from school, to study Biochemistry. Within 6 years he was qualified with a masters degree in his field, and started work in a pharmaceutical lab developing drugs to be used for medicinal uses. Milo was targeted by a narcotics gang and was kidnapped after finishing a late shift; he was offered a choice to either help the gang develop their drugs in Serbia, or be killed along with his wife and two children. Naturally, as a man who cared about his family Milo chose the former, having to be smuggled out of Germany after leaving his wife a note.
After a few years of trafficking and developing various narcotics, Milo ended up in Chernarus, being forced to aid the notorious gangs operating in Novigrad to develop their narcotics and produce them. Milo had no idea if his family was even alive as he had not heard from them in a long time. The years of harassment, beatings and tireless working took a toll on Milo, wearing him down. He finally achieved freedom after the infection began, however he was unable to leave the country and return home to see his family, left wandering South Zagoria looking for purpose or a way out.