Basically, the idea here is this: There are some ships in this game that perform some roles that they really shouldnt, or don't perform roles as well as they should, at least as far as canon is concerned.
The biggest example on mind is the B-Wing.
Basically, the B-Wing was a heavy strike-fighter. It was slower and less maneuverable than the Y-Wing, but packed more firepower to bear against capital ships, while the Y-Wing was a generalist's craft. It carrys no "standard" laser cannons, and instead packs 3 ion cannons, 1 heavy laser cannon, dual torpedo launchers and a cluster of autoblasters. The ions, torpedoes, and HLC, were supposed to be used against capital ships, while the autoblasters were anti-light vehicle and anti-infantry weapons. Never was the B-Wing supposed to engage fighters; It's autoblasters were generally too weak to harm starfighters with their thicker hulls, the HLC and Ion Cannons were so spread out on the wings that it couldnt hit a small, agile target, and the B-Wing was so slow and sluggish that it was incapable of dogfighting. Everyone likes to compare the Y-Wing to the A-10C Warthog, but in actuality the closest comparison is the B-Wing. Bristling with weapons, but extremely slow and not very maneuverable, it is never supposed to engage air targets.
None of these things carry over particularly well to X-Wing. In X-Wing, the B-Wing knife-fights like a fiend and has exceptional anti-fighter capacity. This isn't a complaint necessarily, because the B-Wing still holds a unique role in Rebel squad building, and i am 100% for creative uses for all ships in X-Wing. But, in a perfect world, it would please me if B-Wings had a role in X-Wing comparable to their canon counterparts.
So, what if the B-Wing suffered a penalty when attacking small ships, and a buff when attacking large and huge ships? Let me just list some things that come to mind.
"When attacking a small base ship, that ship may roll one additional defense die. When attacking a large or huge base ship, if the attack hits, you may deal one additional damage."
I want to be clear that this isn't a title, this is just a special rule that always applies to B-Wings. This is neither a buff nor nerf, but instead it re-specifies what the B-Wing should be used for. You can still use the B-Wing against fighters, but this rule represents that B-Wings aren't very good at it. And it also provides an immediate hard counter to large base ships. "But isn't that overpowered?" No, because the hard counter to B-Wings is a bunch of TIE Fighters now. If you think you're going up against B-Wings, dont bring large ships. Furthermore, if you want to field B-Wings in case of big ships, then you'll need to devote part of your squad to anti-fighter ships as escorts in case of small ships. While powerful against large ships in a group, B-Wings will be eaten alive by any other kind of squad, meaning that the necessity of bringing fighter craft will restrict the B-Wing from being too powerful.
Does anyone else have some cool ideas for ships to make them more appropriate to the way they are in canon? Again, i want to specify, i don't think these changes should be made to the game. This is just some fun ideas for how i'd have liked an X-Wing-type game to work.