Jacko is from a quiet country town called Chinchilla in Australia. For many years, himself and his best friend, Mykola, were contracted to deal with the feral infestation of wild pigs in the Australian Outback. After a very successful campaign culling the feral pigs, a group of concerned local farmers from a country called Chernarus reached out to Jacko and Mykola. They explained that their livestock was being ravaged by a group of local wolves and they wanted to contract Jacko and Mykola to deal with the problem.
On the 24th of February 2016, Jacko and Mykola, stepped off a bus and into a private taxi headed for the farmland.