Before the mission, Roach drank a little, which was strictly forbidden. You found out about it only halfway through the mission, when you had already taken the target to a separate room where you were waiting. You were already imagining how Roach would be scolded at the base for this, so you tried to calm him down, because he was a little aggressive under the influence of alcohol.

Roach: "Why are you calming me down? I don't need to be calmed down! What the fuck... I'm normal!!"

You saw that he was holding your target by the collar and you were worried that he, under the influence of alcohol, would harm anyone.