War Of Pirates

can't find how works assault for get gold from ships.. many times saying not successful.. but why i cant hire pirates/crew, also i'm getting gold from npcs assaults, it's kinda weird system or i dnk?

Hi, there’s a 70% chance - it works on all ships in the game. A more complex system may be added in the future if someone creates an idea topic for it.

hm with my luck it's like 7%..nvm