MarsGuard Revere Class Pursuitboat Class History The Revere class pursuitboat was acquired from the BA in their initial transfer of ships when Mars gained independance. These ships were older pre-pulse refit ships, and were nearing the end of their usefullness. Mars happily accepted the ships in mid 2262, and had the first Revere class in service within a year. The blast cannon was exchanged for a dual particle beam, and the interceptor was changed out for a dual unipulse cannon turret. A total of nineteen Reveres were completed. Revere Class SCS