Board Thread:Special Events/@comment-25730832-20150427153606/@comment-24980562-20150506173703

Your ships get tagged regardless of the difficulty setting. Selecting Easy Mode for a map merely means that you can ignore ship locking on that map, and only that map.

E.g.: You use ships in E-3 (any difficulty), they get tagged, and then you clear E-3. You can't use them in E-4 or E-5 anymore unless you select Easy Mode for those maps. This also means that, for example, if you clear E-3 and E-4 on Easy Mode, then want to clear E-5 on Medium Mode, you can't use those previously used ships in E-5.