well, of course you can raid. Most likely trade caravans and outpost from other players. scouting not sure, since there's no way telling if there are any spies in the game.
"The flower of friendship blooms even in hell. On the sand where waves come and go, it leaves its petal as a memento. We will make it bloom again someday, The Okama Way!" - Mister 2, Bon Clay