Complex sentence: In the universe of "Star Wars", the rank of marshal is conjectured to be connected to the TIE fighter forces, being ranks held by senior TIE fighter commanders, equivalent to Imperial Navy Admirals.
Split into simpler sentences: In the universe of "Star Wars", the rank of marshal may be connected to the TIE fighter forces. Marshall are the ranks held by senior TIE fighter commanders, equivalent to Imperial Navy Admirals.