Complex sentence: With 2144 workers on single year tours, it can definitely be a lawless place, with only one Federal Marshall and a few deputies coupled to earn as much as possible mining almost super-human production levels.
Split into simpler sentences: With 2144 workers on single year tours, it can definitely be a lawless place. There is only one Federal Marshall and a few deputies, plus a desire among the workers to earn as much as possible by mining at almost super-human production levels.