Use the Grim Reaper to destroy the MG emplacement.

Escape the Past.

Acquired Emmett's Rocket Drill

Managed to get 190-proof alcohol delivered to Emmett's

Talked Emmett into completing the Rocket Drill

Namechecked BTTF Creators

Heard about the curious fate of Marshall Strickland

Perfectly repeated dialog while repeating Doc's temporal experiment

Escape Kowloon.

Rack up a body count of 20 NVA using air support in Hue City.

Break the siege in the battle of Khe Sanh.

Kill an enemy.

Win a fight using only clean moves