Things You'll Need
Instructions
Defeating Shockwave.
When the mission begins, Shockwave is in his cannon form. He is nearly impervious to weapons used by Optimus in this mode, so pick up an environmental weapon (car, light post, tree, etc.) and attack Shockwave with it.
After two or three hits with an environmental weapon, Shockwave will transform out of cannon mode, and become vulnerable to Optimus' weapons. Melee attacks are the most effective. Close and pound on Shockwave with melee attacks.
Once enough damage has been dealt, Shockwave will retreat to a different portion of the city. As Optimus, follow Shockwave closely. If you get too far behind, a timer will appear and begin to count down. If the timer reaches zero, the mission ends in failure.
Once Shockwave stops (or is found again, if you lost him during the chase), close distance and keep hammering him with melee attacks. Continue in this manner until Shockwave is defeated.