Have you ever had your sleep disrupted for days on end while under severe pressure? Have you personally experienced the loudness of warfare and the constant feeling of being hunted?
I’m not particularly sympathetic to the man, but lack of sleep can do things to you - you might be surprised, no drugs needed.
24 hour continuous operations during live fire with a howitzer for 72 hours straight nonstop.
Never once acted like a tweaker.
Your point?