Complex sentence: Rockatansky is a survivalist in the wasteland and can ignore discomfort and pain in order to achieve a duty, but unlike many movie protagonists, Max is susceptible to realistic, permanent injury.
Split into simpler sentences: Rockatansky is a survivalist in the wasteland and can tolerate discomfort and pain in achieving a goal. But unlike many movie protagonists, Max is susceptible to realistic and sometimes permanent injury.