Complex sentence: Wardaddy then leads the remaining tanks in a counter-attack; and unable to defeat the Tiger from its thick frontal armor, the German tank proceeds to destroy Old Phyliss and Lucy Sue, leaving Fury as the sole survivor.
Split into simpler sentences: Wardaddy then leads the remaining tanks in a counter-attack but are unable to defeat the Tiger through its thick frontal armor. The German tank then proceeds to destroy Old Phyliss and Lucy Sue, leaving Fury as the sole survivor.