18 May 2021 IWTC Virginia Beach Learning Site Groton Instructor Trains “Silent Service” Sailors to Fight and Win VIRGINIA BEACH, Va.– Information Systems Technician (Submarines) 1st Class Derrick Bassett, from Colorado Springs, Colorado, currently serves as the site leading petty officer (LPO) and an Information Systems Technician Submarines (ITS) Block “0” instructor at Information Warfare Training Command