Dead Rising 4

The first step is to unlock the Sling Rot blueprint, located in Old Town on the steps of the church. You'll also want to unlock the entire bottom row of skills in the Brawling section.

Now make the Sling Rot vehicle combo. You can find it directly in front of the church near the blueprint or on the highway leading to the bridge behind it. Once inside the vehicle, you will be preforming a 3 part loop over and over again as follows:



After you complete the third part, get out of your vehicle and make a new one; then repeat the process.

A couple of notes:
- Use your special ability as often as possible as this generates most of your kills.
- Keep an eye on your vehicle damage. You don't want to ever have less than 30% without being near one of the two spawns.
- The 3rd part of the loop is essential as triggering the checkpoint on the highway allows all the zombies in Old Town to respawn.
- The full 3 part loop should take 3 minutes.
- The counter in the bottom left is a little off; usually about 1%-2% from the achievement counter.

This method generates 36,000+ kills/hour. You can grab this achievement starting from 0 in less than 2 hours.

With this strategy you farm Exp (pp) / Kills and Money in no time. With a vehicle you farm the kills a litte bit faster but you obtain only 2 exp(pp) instead of 10exp(pp) with the exo suit. So maybe this is the best "all in one" strategy.

Go to the church in West Ridge and outside you can find near the stairs the exo suit and directly beside that the vacuum powerup. With the vacuum powerup you farm so easily zombies. Our route leads around the church and we only use the charge with the RT button to kill the zombies. The charge is very short and kill so many zombies.

After the power from the exo suit is gone, go to the bridge which leads to Old Town and trigger the checkpoint. Now go back to the West Ridge Church and everything is reseted and the zombies are back. In each round you get about 1500+ kills, 4000+ money and 1 level (basis on my level 56 in this video)