I wish you would rethink these concepts. No matter what your training or individual disposition, it’s impossible to be frosty for long stints. The human mind doesn’t work like that.
Fight mode activated? There are some really tough men in boxes. When you are in that guys place and have done the training, all those illusions are gone.
The legion was beaten in one major battle in Vietnam. Their arrogance got them killed. Moore from the air cav (army) went to the near same place and pounded their arses into a mud hole.
You are looking at it through the eyes of a man who has yet to be there. When your pack is killing you and you’ve barely eaten in three days and the next hill is coming up or next patrol has received its warning order, remember that it’s still just training.
I did so many disciplinary sit-ups that my arse would bleed through my utilities. A raw spot just above the tip of my tail bone. It would crust up over night and then break open and bleed again the next day. It didn’t heal for two months.
I remember SCUBA school in Pearl Harbor. We were in formation once, on a morning that was so dark you could barely see. A sailor standing next to me was talking and I was trying to cut the conversation off. Unfortunately there was a SEAL instructor standing behind us. He liked fukking with jar heads. So he took us both down to the dock close by and told us to stand there and wait until it was light enough to see. When we could see the Harbor entrance buoy we were to raise our hands.
When we could see it, we raised our hands. He walked us over close to the rocky reef shore and told us to swim out to the buoy, memorize the numbers on it and then swim back. Do you know how long it takes to swim almost two miles out and two miles back in utilities and boots? They had a search and rescue guy walk along the shore the whole time just in case we drowned. We had to stay within 100 yards of the shore to give ship and subs right of way just in case.
That search and rescue guy almost kicked our arse for wasting his day having to baby sit our dumb arses.
Tough? Define tough.
Edit: The SEAL instructor never even asked what the numbers were. They were EL2-6171 PEARL