Episode 8: Sins of Our Fathers
54: When you start the mission, turn around and head to the back wall where a statue on the left side will have the mech crawling on its arm.
55: After the remixes, you will enter the Memorial Servers. When you have been walking for a while, the little girl will eventually say “We’re going to be late”. When she does, walk towards the white square on the ground and a block will move behind you. Turn around and go to the right where the path is now open and go around the corner. Look up to the right to see the mech on the side and that will get you your “Pest Control” achievement or trophy.