The final countdown: Chapter X

Move forward, dealing with shotgunners and an Enforcer supported by Autobuggies. Bruticus arrives.

Enter the Iacon facility, pass a store, kill an Autobot and the door, then clear more Autobots.

Enter the central building and ascend to the bridge.

Snipe Autobot snipers and proceed for a scene between Megatron and Prime.

After the scene, defend against four shotgunners. Drop off the ledge to the left to collect Audio Log (AL 10-3).

Continue through Autobot lines, past a store, and into an area with Autobots and Autojets.

Cross catwalks into a large pipe. Before dropping, snipe as many Autobots as possible and destroy one turret near the exit. Use Megatron's hover to bypass security gates. Another turret appears near the exit.

Flip the lever and fight Autobots in the next room. A titan appears but is easily defeated.

Spot an Audio Log through barred windows. Use the opening in the ceiling to hover jump and reach Audio Log (AL 10-4).

Take the elevator. In the next area, gain control of the upper catwalks to deal with assaulting Autobots.

In the following room, locate Trypticon's leg stabilizers. Shoot the six batteries around them to proceed. Defeat the horde of Autobots first.

Move up to find the torso unit. Wait for Laserbeak to slice the door, then open it. Inside, collect the last Audio Log (AL 10-5) and flip the lever to free the torso.

Advance through another wave of Autobots (including snipers), pass a store, and reach another elevator.

This is the final area. Shoot snipers from the air and disintegrate the six batteries scattered around the area. Soundwave arrives and attempts to bring Trypticon back online.

Protect Soundwave during the countdown displayed on the top of the screen. Enemies include shotgunners, rocketeers, and snipers. Continue killing them until the chapter is complete.