i not looked into island editing yet but i know someone who may be able to help us. Probably do the same for ArmA at some point. this overridden the need to load a different island map. so missions could take you to any of the worlds at the same time. In the OFP mod some people created massive maps that had many, many small islands on them with different themes. you would have to be able to load another mission file within a mission and carrying over all your settings, Ie troops and weapons. Im not sure but map to map jumps would be impossible in armed assault.