User blog comment:Shinhwalee/Major Event Preparation Guide for Admirals/@comment-26429610-20150810010541/@comment-14.162.204.237-20150810013146

you should be careful with the ships you intend to use on the early maps since it will be tagged "used" for those map hence locked in the later maps. we cannot trick the devs that easily by turning on med/hard at the last map and doing all ez at the others