Connect a controller for a phantom player two and start the game. Select the first mission in single player mode. Do not press any buttons on player two's controller yet. Progress through the mission. After defeating three waves at the Chem Generator and the gate opens, you will be attacked by four larger groups of enemies. Press Start on the controller and a second Marine will appear. Defeat the remaining enemies and pass through the open gate to complete the mission and earn the achievement or trophy.
Complete the following tasks to unlock PlayStation 3 trophy rewards.
Complete the following tasks to unlock PlayStation3 trophy rewards.