It was almost unnecessary, really. They were all grown adults, with some of the greatest minds of a generation among them and a collective killcount the size of a small country. The rules of the kitchen should honestly have been self-explanatory.
Too bad mercenaries are not known for their ability to think for themselves.
McCree hates being in Russia, hates being unable to do anything for the mission, and he's bored.
Thankfully, Tracer drops by with an unexpected visitor.