AI digging

I am working on a game project and I need the AI to dig on command similar to lemmings where you tell one lemming to start digging and they will start tearing a hole through the map. I am fairly new to Unreal Engine and I was wondering if this was possible and if yes where would be a good place to start?

This has a big answer, to much to explian here, in Unreal Engine just about anything is possible, you just gotta find a way.