What good choices and proper procedures do you go through that many players miss? I recognize Armada is a highly situational game and there are exceptions to almost everything, so I'll give a couple examples of the kind of general rule I'm looking for:
When bombing a fresh target with Sloane aces, hit with Maarek and Jendon last.
Due to 2 blues, a guaranteed crit and the accompanying reroll, Maarek has a lot more control over accuracy generation or lack thereof than a TIE ace. This means you should see how many accuracies the single-blue dice gods give you before making the attacks you have better control over.
When double-arcing a ship with a brace, try to make your attack pools as similar in size as possible.
This particularly applies to ships with External Racks; say you've got a Raider-1 double-arcing an ISD. For the sake of simplicity, we'll assume 1 damage per dice. You could deal 6 damage out the front, see it braced to 3, then hit for 2 more out the side = 5 total damage. Or you could hit for 4 damage out the front, see it braced to 2, then hit for 4 more out the side = 6 total damage.