Okay, I reinstalled SS2 from my CD backup. I started a war career on 12-8-41 and choose Manila as my initial base with an Old "S" class submarine (S-46). Patrol area was the Phillipines. When you patrol during a career you're on a large strategic chart, when you make a contact you drop to the tactical map. The first battle was between 2 armed freighters and S-46 in 350 feet of water. It was a tie! I got one freighter and they almost nailed me. The second battle was at night, between 2 tankers and S-46. They lost, sank both tankers with a mix of torpedoes and deck gun fire. This time the water was 700 ft deep. When you loose contact with the enemy ships you're brought back to the strategic map. Whether you could start a battle in shallow water and run deep or vice versa, I don't know yet. Because of a loss of bases in rapid succession, I ended up getting towed to Pearl Harbor, out of gas!
Christopher