Professional Contractor for International Intelligence Limited, Ex-Armed Forces - Served in the Royal Signals and applied to join the S.A.S but failed selection.
After that he was re-assigned to the Intelligence Corps, where he gained contacts and skills that allowed him to pursue a career in the private sector.
He was sent to Chernarus 340 days after the outbreak, by the CEO of IILTD, to try and discover the fate of his Daughter.
A three man team was sent with him, and together they managed to locate the living area of the VIP, but when the infected inside attacked - only Mac survived the infection.
His main objective now is to try and find a way to contact IILTD - to secure a way home and pick up the contract fee for himself and the dead, a large sum of some £2.3M.