Cut By Emerald: In the World of Piers Anthony's Bio of a Space Tyrant (Combat Command, No. 1)

You are Lt. Commander Emerald Sheller: You command the toughest soldiers in space. Now, on a special mission ordered by none other than Hope Hubris, the Space Tyrant, you must outflank the Marianas pirates. From long-range battles in deep space to bloody hand-to-hand combat, your strategies hold the key to victory or defeat.