Well, as I have zero experience playing tournaments...choose one of this as the most popular

- Heavy laser cannon

- Mangler cannon + Fire control system

I like both. with HLC you can equip Advanced Sensors but it is a quite expensive combo. Or not?

FCS by itself is more than enough imo

Getting a fully modified focus + TL attack is something normally reserved for expensive ace pilots, and being able to sling out near perfect attacks for a mere 24 points is solid gold

I like the "zestorer" heavy fighter B wing. Range 3 four red no green bonus dice... DAKADAKA.

But HLC Blue equals 29 pts... And I think FCS is worth 2 pts, so Mangler is cheaper, but only 3 choices ...ahhh...

Death Bubbles is fun:

3x Daggers-Bwing with HLC & FCS...

But I modified it to this:

3x BlueSquads-Bwing with HLC & FCS + two of them have the E2 mod & Tactician

The idea of either is to end the game quickly trying to focus them on one target to ensure a kill every round OR major damage on a high HP ship.

I like your 3 Blues...