the artwork never named which fighter as which
Amusingly, the Eagle's art is the exception, as it's used as the opening art for the fighter section of that TRO and is clearly labeled.
...as the Hammerhead.

I feel like I can recall at least one person complaining when Aerotech 2 came out that the Hammerhead art had been "retconned" when it's original art was swapped back and the Eagle received the 3057 art.
Just a small aside, the Eagle was the first aerospace fighter the Magistracy is listed as producing in StratOps, which isn't too surprising considering who their neighbors are.
Not to mention that the Eagle is an excellent fighter to be starting out on.