Purge on Xbox one

What happens if you build a base on top of a mountain? Will they still attack base or not? Also is their a console command to start purge?

Can someone give me a straight answer on if you can play Conan offline(locally) without internet connection?!

If you build on a mountain, cliff, on water, etc. Where you cannot simply walk up to the base then the purge spawns in your base.

Yes you can play offline.