@mostlostnoob The previous exploit was based on the fact that Armies 1, 2, etc spawned on markers 1, 2, etc., so you could look at the spawn marker positions from the save file and associate them with an Army, identifying which player got what slot (Armies also contain player name and faction data).
This got patched by FAF by scrambling the marker positions upon sim initialization for random spawn settings maps. This scrambling isn't reflected in the save file obviously, so there is no way for the UI to know what players spawned where, only where the spawn points are. The "... (Revealed)" spawn settings work by adding the newly scrambled positions to the Sync table for the UI to access and use to place the visual elements.
My version of the reveal positions mod still looks at markers in the save file, but it doesn't show player names if the spawn settings scrambled the spawns.