Intelligence documents whose predicted throne room locations prove almost exactly correct when the map reveals them.
Juice Box's papers included a map predicting where each faction's throne would sit. When Phase One Combat begins and the system locks the thrones and publishes their positions on The Map, Carl zooms out and confirms that all the faction throne rooms are pretty much where Juice Box's map said they would be.
The validation is tactically significant: it means Team Retribution's planning assumptions hold, and Carl uses the confirmed layout to pick out the The Naga dot just south of Larracos before heading for the Southern Front.
Gathered intelligence documents including a hand-marked map of predicted faction throne locations.
Pre-war intelligence proven accurate at the moment the thrones are revealed.