hmm hard to say well heres my few ways.
1. Chase them down in a semi trailer\
2. Get the hunter and cut them up with the blades
3. Fly the At-400 Straight down on top of them and in first persons view.
4. Place sachel charges on a car that is about to drive past then guess what... BOOM!!!
5. Down near the beach when they were their, get the squallo aim it up and go for the jump.
6. Going ninja still with the katana.
7. Going crazy bloodfirsty ninja and hunt them down with the chainsaw.
8. Napalm aka molotuv cockatils I always laugh my head off seeing them run and burn.
9. Mow them down with the ride on mower.
10. slice them up with the combine harvester.
11. Mow them down with the mini gun.
12. On the back of the frieght train when going through their hood. Just mow them down with the rockets or ak 47.