Wing Commander Arena - Gunfighter

Hi there,

For the achievement "Gunfighter" it requires that you have all of the ships unlocked.

I have found on the internet that to unlock the "Terran - F-44 Rapier II Cavalier" you must unlock the "Navigator" achievement. I have unlocked this achievement but still do not have the Cavalier available...

I have been told that I may have completed the Navigator achievement in the wrong ship..?

I have met the requirements again for the navigator achievement but in the correct ship and it has still not unlocked the Cavalier...

I have played each mode quite a lot since unlocking the Navigator achievement as this sometimes forces certain glitched ships to become available, but this didn't work either.

I have also just unlocked the "Hot Dog" achv in the Terran F-44 Rapier II" in the hope that this may unlock it, but still no luck...

Please can anyone help or suggest what I must do now to allow me to use the "Terran - F-44 Rapier II Cavalier"..?

Thanks a lot,

need help with a couple achievements for this game. message me on here or xbox if you can help