Complex sentence: Prisoner functionaries could often help other prisoners by getting them into better barracks, getting them assigned to lighter work, and on occasion, to get them removed from transport lists or even get them new identities in order to protect them from persecution.
Split into simpler sentences: Prisoner functionaries could often help other prisoners by getting them into better barracks, getting them assigned to lighter work. On occasion, to get them removed from transport lists or even get them new identities in order to protect them from persecution.