Left 4 dead:
Survivor Stories
It was cold Evening, William 'Bill' Overbeck (a retired veteran of the vietnam war) was at a veterans hospital waiting for an operation, possibly relating to his knee injury. When a resident staff attempts to make small talk in regards to Bill's missing family along with his smoking habits, Bill tells him to go Foxtrot Oscar.
As he undergoes anesthesia and slowly blacks out for the surgery, one of the nurses becomes almost 'Enraged' and kills the operation room staff. Bill somehow staves off his oncoming unconsciousness through sheer force of will, as he simultaneously fights off the 'Enraged nurse, disabling her briefly. Finding a bonesaw to defend himself with, Bill fights the sudden rise of 'Enraged' People and their victims outside the hospital to make it back home, where he dresses up in his old military clothing which had been put away to preserve it. Equipping himself with his trusty M16, Bill heads to his shed where he gets: some planks of wood,a box of nails and a claw hammer to barricade his Knowledge from Vietnam he wasn't going to go outside to fight the Infected on his own.