Original sentence: During the ensuing battle, the escort was completely overwhelmed, demonstrating the potential of the wolf pack tactics and the inadequacy of British anti-submarine tactics at the time.Many of the merchant ship captains were resentful at having to sail in convoy,would have preferring to take their chances on their own rather than risk such a slow crossing with a weak escort.Scarborough would have had little chance against a surface attack by a German raider.They  often uncooperative; at one point early in the voyage Scarborough's captain was shocked to find a Greek merchant ship in the convoy travelling at night with her lights on
Edited sentence: At one point early in the voyage Scarborough's captain was shocked to find a Greek merchant ship in the convoy travelling at night with her lights on.During the ensuing battle, the escort was completely overwhelmed, demonstrating the potential of the wolf pack tactics and the utter inadequacy of British anti-submarine tactics at the time.Many of the merchant ship captains would have preferred to take their chances on their own rather than risk such a slow crossing with a weak escort.Scarborough would have had no chance against a surface attack by a German raider.They were resentful and often uncooperative