Complex sentence: Agonizing over missing out on his daughter's childhood, B.J. decides to drink his way out of the army and when told by Hawkeye that won't work, he destroys their still and punches Hawkeye in the eye as he runs out of the Swamp.
Split into simpler sentences: Agonizing over missing out on his daughter's childhood, B.J. decides to drink his way out of the Army. But when confronted by Hawkeye, B.J. destroys their still and punches Hawkeye in the face as he runs out of the Swamp.