*You can use a submarine fleet to minimize resource consumption. Using Iona is not a requirement but she has very good stats and will make clearing the map much easier. Consider equipping a Type-A Ko-hyoteki on her to enable preemptive torpedo strikes and replacing it with torpedoes when she hits level 10 to enable cut-in attacks. | *You can use a submarine fleet to minimize resource consumption. Using Iona is not a requirement but she has very good stats and will make clearing the map much easier. Consider equipping a Type-A Ko-hyoteki on her to enable preemptive torpedo strikes and replacing it with torpedoes when she hits level 10 to enable cut-in attacks. |