General Kreigkopf was a legend in the U.S. Army. He was an aggressive and ruthless tactician. He was tipped for the very top but he struck a 19-year-old Lance Corporal in the neck with a rifle butt rendering him quadriplegic and Kreigkopf was kicked out of the military.
Kreigkopf fled the country before the court martial and turned up as the main player on Grand Nixon Island, a south pacific scum hole full of mercenaries, criminals and psychos - this was when he would inevitably have his run-in with the Punisher. After Grand Nixon Island, Kreigkopf and everyone on the Island was incarcerated with a nuclear bomb.
In the 2005 Punisher video game, Frank Castle kills him (which the player can kill him how ever they want) on Grand Nixon Island.