General Dodonna's forces are referred to as the 'Massassi group', named after the ancient Massassi temples found on Yavin 4 which were seen in Star Wars: Episode IV - A New Hope (1977) and Rogue One: A Star Wars Story (2016).
Veteran voice actor Michael Bell provides the voice for General Dodonna, whose character first appeared in the original Star Wars: Episode IV - A New Hope (1977). Bell provided a voice for another rebel officer in that very film, namely that of Commander Willard.
Hera orders the evacuation code "Kay One Zero" on Atollon, the same code used by Princess Leia to evacuate Hoth. However, this code was never spoken during Star Wars: Episode V - The Empire Strikes Back (1980). It was first mentioned in the Decipher Star Wars Customizable Card Game and has been used in several other sources since.
The Aurebesh text on the holographic map in Ezra's tower translates to 'prime sector'.