Mo Shangjun's deduction wasn't without reason.
If the opponent were even slightly clever, they would choose to act during the transition between the first and second halves of the night.
Moreover, they would lean towards the first half of the night.
It's impossible to stay awake the whole night, and with such a small group, taking shifts is a bit difficult. They must remain somewhat alert, and even while resting, they cannot be careless.
This inevitably leads to a period at night where they'll be in a relaxed state.
Moreover, most people will subconsciously be more vigilant in the second half of the night, making them more relaxed in the first half, trying to seize the opportunity to rest.
If it weren't for the instructors digging a huge pit for them last night, Mo Shangjun would have liked to act in the first half of the night—they never expected to be on the road the whole first half of the night, becoming exhausted.
Fortunately, they successfully completed the mission.
