Padim was obviously an experienced combatant on the battlefield. He knew what was the most important thing for a person on the battlefield. He had participated in more than ten battles of various sizes before.
Moreover, there were several times when they were equipped with only light equipment. Because everyone had too much equipment on them, they abandoned their life-saving dry rations. He remembered in those battles, their team had suffered from multiple casualties and death, eventually he was the sole survivor that remained.
Their deaths were not caused by the strength of their enemies, but instead, they had insufficient nutrients, and hence could not survive in such a harsh environment.
However, the biscuits he ate just now were different. As a veteran, he immediately realized the significant importance these high protein biscuits meant to a soldier.