Reading the card I understand up to the first full stop on the card eg 2 Force gets a bonus attack. Then the card goes on to say "If that attack missed....." I assume this is referring to the 1st ship attacked.

Correct. If you miss your original target you can attack it again. Otherwise you can attack a new target.

You got it. “Your attack” is the first attack. “That bonus primary attack” is the second attack.