· Forget about using the car as a weapon. · Go back to the area with 2 shacks close to the Missle silo. · Make sure you have plenty of logs (wooden logs) · Wait at the top of that area (fork In the road) · Take out the Hunters using the Gravity gun & logs ( one shot 2 max) · Then focus on the Walker. · Repeat until all the walkers are gone. · Sure you wont protect any of the buidings but you’ll finish the game easily.