walkers are not snow. most are walking skin and bones. They would be knocked down and plowed over. Woody Harelson showed how it is done in Zombie land. Just put a snow blade on front and just mow em over. You can do donuts in the field and send them flying as they come also. Heck just give me a Sameri sword and I could take out a ton of them. I'm pretty freaking fast so I would slice and dice and.move before the next one could get me.