Born and raised in Ireland, in the heart of County Tyrone. Sean was raised as a son of Packie McManus, a highly respected local IRA commander for the East Tyrone Brigade. Packie McManus was killed in an S.A.S Raid in the village of Cappagh in East Tyrone shortly after Sean's birth. Sean was then raised by his Mother, who wanted better for her son than for him to join the local brigade, Sean abstained from joining the East Tyrone Brigade despite constant pressure and threats against him and his mother.
By the time Sean was 26, he had moved out of Tyrone into Belfast where again he was targeted by the IRA and pressured to join, once more he abstained, until two commanding officers of the IRA Gerald Adams and Martin Bushmills approached him with information regarding one of the SAS officers that was involved in the raid that took the life of his father Packie. The deal was that in exchange for this information, Sean was to join the IRA and become part of an ASU.
This information that was presented to him stated that one of the members of the SAS had officially retired in a city known as Chernogorsk in South Zagoria. Sean adamant to find his fathers killers took it upon himself and left Ireland and travelled to South Zagoria in pursuit of the man that had taken his fathers life. It was then when the infection struck, and the borders were closed off. Sean was isolated and alone or so he thought in this vast place which he knew nothing about, he wandered about for many days looking for signs of life, to which he saw very little. One day on his travels he came across a man named Lewis Schultz whom had been travelling with a group of Irish. Sean was invited to join the group of Irish that were feared across the lands and overtime grew to forget about his original reason for arriving here.
As time passed the Irish then got involved in many conflicts, which claimed many lives on both sides. Sean then chose to leave the group and decided to wander alone. It was then when he met Grisha Petrov, a man whom he had heard about through whispers, a savage mercenary that would do anything as long as the price was right. Sean asked of Grisha would he be able to assist him in finding the retired SAS man to which he replied in confident tone that he would.
Grisha Petrov was a man of his word.
Sean was then alone again, until he met up with Lewis once more, who was going along with a small band of survivors, Lewis again offered Sean a place by his side once more, which Sean accepted as he knew he couldn't survive the world much longer by himself...