Vs fighter swarm you stick your capital ships togeather so they can cover eachother. Any squadron aproaching can potentially get shot by 6 to 9 dices. Also you can screen your fleet with few cheap fighter squadrons and when enemy is stuck in dogfight waste them with ship aa.
Not always a valid tactic as it can reduce your maneuver options and tends to put all your ships in range of the enemy at once. The best option is dedicated anti-fighter screening ships ahead of the big ships. The Nebulon-B is the only one that fits this role so far with a 3-dice AA defence. Unfortunately, there don't appear to be any for the Empire as yet.
The unusual thing I've noticed is that although each ship's armament seems to be down each side of the vessel, their overall firepower is concentrated forward. There isn't likely to be any "broadside" firing. With all the firepower to the front, it's going to be a charge straight in that's going to give the most punch, and anything outflanking a SD is going to have a lot less firepower coming at it, than from a frontal assault.
This is going to be a game of maneuver and big and slow ships might become laser magnets. It's going to be key to be able to flank a target and still have it in your forward arc.
Edited by Parravon