If you enjoy playing Victory at Sea then do not hesitate to buy this supplement!
The .pdf is 132 pages and is far more than just a collection of new ships! Order of Battle really does add to and expand the game, bringing with it rules changes and clarifications to problems in the original Victory at Sea, as well as expanding the base rule set to give it even greater utility. I feel that adding Order of Battle with Victory at Sea really took my level of enjoyment of this game up another level and greatly widened the scope of battles I could recreate. My regret is that I hesitated to purchase it sooner!