Complex sentence: Aware of the time constraints Otway decided he could wait no longer and the reduced battalion headed for the battery and joined up with the second in commands reconnaissance party just outside the village of Gonneville Sur Merville.
Split into simpler sentences: Aware of the time constraints Otway decided he could wait no longer and the reduced battalion left for the battery. They joined up with the second in commands reconnaissance party just outside the village of Gonneville Sur Merville.