Notes:

From Team Fortress' 5th comic Old Wounds
For context, these are Mundy's adoptive Australian parents whom have died several months prior to the events of the comic. His father initially thought he was a crazed gunman, as mentioned in the introductory video Meet the Sniper.
In the events of the previous comic, Mundy was fatally shot, only to be reanimated by the Medic six hours later.