Complex sentence: Bronski, still dressed as Hitler, simply orders them to jump out of the plane (at about 10,000 feet and "without" parachutes); the mindlessly obedient pilots instantly leap to their deaths.
Split into simpler sentences: Bronski, still dressed as Hitler, simply orders them to jump out of the plane (at about 10,000 feet and "without" parachutes)! The mindlessly obedient pilots instantly leap to their deaths.