Star Wars: The Old Republic takes place way before the Clone Wars or the Galactic Civil War.
In TOR, the Sith Empire has triangular shaped battleships in space missions and the Republic (the actual Galactic Reapublic) has Correlian class ships and ships that looks like the Rebel fleet in the Galactic Civil War.
Thousands of years later, the clone army of the Republic (same republic presumably, so the Sith Empire loses the war) uses triangular shaped ships.
Then the Emperor dissolves the senate and turns the Galactic Republic into the Galactic Empire, this empire is not the Sith Empire from TOR but it is run by Sith.
Then in the galactic civil war, the Empire uses the same triangular shaped ships that the Sith Empire did way back when and that the clones used while the Rebels use the ships that the Republic uses in TOR.
Shouldn't the Republic in TOR use the triangular shaped ships? Aren't these the battleships of the Republic in the Clone Wars and in the Galactic Civil War? Is Bioware using the lame Rebel ships just because people use the 'Republic' and 'Rebels' interchangeably?
Does Bioware realize that you can't pull the ships used by the Empire and Rebels in the Galactic Civil War straight back and use them like that because the Empire used to be the Republic?