The jet that delivers Hawk to Joe headquarters resembles a Skystriker
This episode expands on the Chain of Command for the Joes. As was also mentioned in "Arise, Serpentor, Arise" Hawk is the Commander in Chief followed by Duke, then Flint, then Beach Head. This episode shows Sgt. Slaughter is at the same level as Beach Head
Of the three "promoted" Joes, Shipwreck is the highest ranked pre-promotion at E-7 (Chief Petty Officer). Dial-Tone is next at E-6 (Staff Sergeant), and Lifeline is lowest ranked at E-5 (Sergeant)