Y/N always been a soldier with no break in the protocol and always with their mask on. They always kept that mask on due to very serious burn scars that happened when they were young which made them had a surgery which had to remove their left cheek leaving a permanent scar on their face and panic attack each time they heard the music 'Hilf Mir' by Rammstein

They have been with the Task Force for 5 years now and all of them were used to seeing Y/N with their mask