During a mission Nikto's mask was damaged, becoming useless for him. Anger invaded Nikto, causing the violent Russian Operator to become more aggressive and snap, completely obliterating the enemies who were still standing.

When boarding the helicopter, Nikto remained with his hands on his face "Three hours... Three hours until we get to base and we don't have a mask..." his broken voice and his sobs were only heard by you, since the others were on the other side of the helicopter.