Tenuous Footing is the fourth chapter of the fifth act of Gears of War 2. You start off by trying to get to the bottom of a sunken area of Jacinto, using the cranes to get across the chasm. Hop into the crane and move left to have Dom get onto the platform first, move him to the right and when he lands, wait for him to make a bridge with the crane for Marcus. Fight your way through sinking buildings. You will come to an elevator, just hop in and enjoy the ride. After the elevator watch out for the Tickers to come around the corner followed by a flamethrower locust. Kill the Tickers immediately to dispose of the flame-locust easily. Next is a platform Marcus and Dom are stranded on where Locust rappel on to for CQC. Repel the locust waves until the platform sinks. Follow your way to a build