Board Thread:General Discussion/@comment-25054726-20150114164249/@comment-24477438-20150202234432

^Actually you can do it by any level. But you only should do it when you have nothing better to do rather than wasting 10+ hrs in the game sending your sub fleet in 5-4 just to get 2 or 3 items which are usually obtainable in a month or 2 with some kai2, which you would get with at least 4 times less resources and 10+ times less time spent.