Boris Sahalin (Currently goes by his real name Yuri Ouromov) was working on establishing a gas pipeline between Russia and Chernarus as a part of project to maintain friendly relations and bolster the partnership of both countries. Though some could say he entered the project under some very dubious circumstances, leaving a rather hushed atmosphere floating about the man and his true motives. Rumors on him being a Russian spy sent to guard assets and procure the confidence of pro-Russian movements wre uttered, but never aired loudly. Nor they never got a chance to go into fruition as the outbreak happened.
Enjoying his day off during a rough day at work in one of the northern villages, he was alerted to the panic, after gathering the necessary information (or receiving it). He began actively avoiding populated areas and chose to head into the southern woods, as the north was overrun. Awaiting for further instructions that never arrived as dead silence struck the radio.
Eventually he gave up on reaching his homesoil and met a rather peculiar doctor who gave him promises of finding a cure, so he actively works as her bodyguard and compatriot, along with the rest of the merry band she had dragged along.