Complex sentence: Daniels sees through Burrell's bluster about needing a capable investigator and realises that Major Valchek has asked for him by name; seeing an opportunity he demands a promotion, his own major case unit if the investigation is successful and the chance to pick his own people.
Split into simpler sentences: Daniels sees through Burrell's bluster about needing a capable investigator and realises that Major Valchek has asked for him by name. Seeing an opportunity, he demands a promotion, his own major case unit if the investigation is successful, and the chance to pick his own people.