I am going to give you a quick answer to your first question and I will let my colleague answer the second.
In an infantry section, an armoured vehicle, or any vehicle for that matter, each individual sees his comrades and watches their behaviour very closely, what they say and do every day. The interaction between pairs of individuals is very personal, though it depends on the individuals. If it is more serious, someone is going to put a word in the ear of the deputy section commander and ask what he thinks. At some stage, according to how serious the situation is, either the chain of command becomes involved, or health professionals are asked to look after the situation.
You should ask General Grant, General Laroche and Colonel Hetherington that question. You are going to have them here in the next few weeks. They can give you a precise idea of how things are handled on site.