Private Chen is a member of the Mustang Squad. He is seen in the 'Tracking the Supplier' missions. Towards the end of the second phase of the mission, he is pinned down by hostile soldiers. Depending on the player's actions he will either be killed after crying out in pain, or will survive, thanking the player for helping him and disappearing further into the building. If he survives, he is not seen again and is presumably killed along with all of the other members of Mustang Squad, excluding Newman and Downs.