Complex sentence: She worked in various parts of the camp; in the kitchen, laundry, etc. Her one single duty after 1942 was overseeing the camp's bunker where women prisoners were tortured and killed.
Split into simpler sentences: She worked in various parts of the camp including the kitchen and laundry. Her single duty after 1942 is said to have been supervising a bunker in the camp where women prisoners were tortured and killed.