The continual evolution of military simulations has provided much of the technology for the exchange of entity data between the environments. In particular, the extensive development in the resolution and granularity of aggregate simulations, combined with the entity data and ownership transfer capabilities of the High Level Architecture (HLA), has broken much of the virtual to constructive barriers for meaningful and productive data exchanges. So much so that in simulations, the real division has changed to be between the entity and aggregate simulations environments. The real challenge is no longer moving entity data between the live, virtual and constructive environments, but rather the movement of entity data between the entity and aggregate environments. This paper discusses eliminating the artificiality of aggregate state casualty resolution and assessment tables and the aggregation and de-aggregation of entities when passing ownership between entity and aggregate simulations.