You’d think it would take guys a while to really fall into the system but in all reality guys tend to pick up on all of that pretty fast as soon as you put them into a longer duration environment.
“There’s guys over at point x!”
“Let’s just go get em!”
12 hours later they are still at newly secured point X with no food, low water supplies, clouds closing in, a long cold night ahead while they are still dressed in their basic combat uniform.
After they get massacred to a man trying to exfil from point X, they tend to have a greater interest in the entire process.