I think it's after about 3 hours of play. After that it starts 'bombing' my town and underground base.
EDIT: before the 3 hour mark I get messages every 20m or so but thats somewhere in the wilds.
EDIT2: Also, Great Mod! <3 From me!
EDIT: before the 3 hour mark I get messages every 20m or so but thats somewhere in the wilds.
EDIT2: Also, Great Mod! <3 From me!