Just beat the agency missions. I must say, the climax of the first game was way better. -Spoilers-
Jumping from nuke to nuke while you shot the president while eventually jamming him in his own nuke and aiming it at an oil field was cool, but nothing quite Annoying Oranges in the first one where you had to fly a fighter jet abreast with the presidential jet, jump from the fighter jet to the presidential jet, then when he jumped out you had to skydive up to him and a strap a bomb to him.
