Z mentioned this one back in October. Here's a little more info. From Gamefound: An immersive story-creation campaign game for 1-6 players that drops you into the heart of darkness: Vietnam, 1967. You lead a squad of US Marines through dense jungles, flooded rice paddies, and straw-thatched villages. Your decisions determine the story. Your tactics decide the outcome of life and death fire-fights. Complete the mission, get out alive. BGG Link
Image Source: Gamefound
Image Source: BGG
Sounds cool