Too much of the modern battlefield is computer coordinated not to have a computer specialist right out there in the field with you. Problem is, most hackers don't exactly fit the combat profile. Mainframe is the exception. He was twenty-eight years old at Naval Special Warfare Command and he still finished at the top of his class. He's got brains -- but he's hard. Mainframe enlisted in the United States Navy at the age of seventeen and made it overseas just in time for a year of hostilities. He left the navy to get his degree from MIT on the G.I. Bill and did a stint toiling in the antiseptic corridors of Silicon Valley making big bucks and fighting off boredom with a stick. Luckily, the Navy were still looking for good men with just his qualifications. The proper papers were signed, and M