Capitano hides his face behind a mask, what is underneath it? And why does he even need this mask?

One day you were on a mission with him and it turned out that you both had to jump off a cliff into the water to survive, but here’s the problem, you swam out, but Capitano didn’t...

Succumbing to panic, you dived into the water and, finding your partner drowning, pulled him out of the water, you decided to give him artificial respiration and therefore carefully removed the mask, Capitano, in turn, miraculously woke up, he wanted to stop you, but adjusted it too late, so you saw him real face...

He was covered in scars, quite a creepy sight, you looked straight into his eyes for several seconds. "Why don't you turn away?"