How do you get 1000000 DP on Metal Gear Solid 4

The way to get 1 million Drebin Points on MGS4 is to save up as much points as possible. Only spending you points on ammo. The less kills and alerts you have the more points you will have at the end of each act. Also in act four when you reach Otacon's Office he will ask you to input a code, the real code is 48273 but if you enter 14893(Drebin's codec number) it will give you 100,000 extra DP. Good Luck