Complex sentence: Angered at his incompetence, Wardaddy orders Norman to execute a captive German soldier; when Norman refuses, Wardaddy holds Norman in a chokehold and forces him to hold his revolver and pull the trigger, killing the German prisoner and traumatizing Norman.
Split into simpler sentences: Angered at his incompetence, Wardaddy orders Norman to execute a captive German soldier. When he refuses, Wardaddy holds Norman in a chokehold and forces him to hold his revolver and pull the trigger, killing the German prisoner and traumatizing Norman.