They needed rest.
But they couldn’t rest. Not yet.
Lip had probably recited these numbers a dozen times to “rookie” teams over the years—a lack of sleep was a powerful enemy. A full day without sleep rendered you 15% less efficient. Two days, it was 70%. Three days, you had one in three chance of injuring yourself with your own weapon. The longer you went without rest the more dangerous it became. They were all hurt, exhausted, and have not drank or eaten enough. That made the math even more unfavorable.
And then there were the wounded.