>What was funny though was that the Germans created their own stricter camp rules

Your probably referring to the fact the Nazis in the camps attempted to maintain loyalty amongst the non-nazi members who rather enjoyed not being on the front lines anymore by harsh extrajudicial discipline.

However, rank is still maintained in POW camps, POWs must follow orders of superior officers and nominally they are under the command of their superior officers who are themselves obligated to follow the lawful commands of the camp commanders. So discipline was largely handled by the prisoners rather than the guards. At the same time enlisted guards had to show superior rank prisoner a certain amount of respect and enlisted prisoners had to show superior rank camp staff the same amount of respect they would their own superior rank officers. Being in a camp wasn't like being in a prison, it was like being in the army but instead of doing combat your being kept busy because you aren't allowed to move freely.