What was Security's job?
I'm a bit confused by the role of Price, aka Security, in the barrack's operations. The barrack's chief - easy to understand. From the German's perspective, he was the liaison between the POWs and the guards. He was responsible for making sure everybody followed the guard's orders. From the POW's perspective, he was their moral leader and everything they did should be approved by him so he could coordinate with other barracks, etc.
So, what was Security's role?
Procurement? Fake IDs? Calculating timing? Gathering knowledge about the guards? Gathering knowledge about the other POWs?
I ask because I never saw Price do a d*mn thing (in the first half of the movie before he revealed himself a clumsy spy)