- 1). Start the level and head up toward the top of the ship.
- 2). Climb onto the cargo crane's control panel and press the "Square" button on the PlayStation 3 or the "X" button on the Xbox 360 to hold onto the zip line.
- 3). Press "Square" or "X" to pick up the rocket launchers from the boxes. Jump down onto the deck level two and sneak up to the chainsaw infected from behind.
- 4). Press the "L1 button" on the PlayStation 3 to ready your rocket launcher. Press the "Left Trigger" on the Xbox 360. While holding "L1" or "Left Trigger" press "R1" on the PlayStation 3 and "Right Trigger" on the Xbox 360 to fire the weapon. Aim the rocket launcher at both chainsaw guys before you fire to kill them both with one hit.