OK, here are my two cents-
Shed the two side mounted weapons and replace them with an upper and lower mounted turret instead. They can serve as auto-targeting (or the ship can have a gunner) offensive weapons, and as defensive weapons as well. Plus it will allow the pilot better freedom of movement because it will keep him from having to make very predictable strafing runs.
If this is going to be the only fighter ever seen, a large carrier may be overkill as its base of operations. Maybe it can detach from a much smaller class of ship, instead of emerging from a bay which seems a little wasteful in terms of space.
And if the ship is going to engage capitol ships I would suggest removing a pair of the forward mounted guns and installing launch tubes instead. Unless you would rather have the missiles mounted underneath the hull, but that would involve a lot more work I would imagine.
As far as the ECM goes, most smaller craft utilize pods, which can be shed once the power cells and/or ordnance has been used up. And larger ones also use decoy drones.
I am assuming based upon the ships shape it is strictly a non-atmospheric vessel. In that case you can put lots of ‘hard-points’ on its hull, it would make it look as though lots of modular units can be placed on it based upon what type of mission it is going on. And therefore much more multi purpose.
Hmmmmmmmm… I guess in that case it would need a carrier after all. The carrier would supply the fuel and ordnance, and then a ‘host’ ship could ferry the fighter/fighters to a launch point. Thereby vastly extending the fighters range and keeping the pilots fresh for their mission.
Oh well, enough babbling. Nice work, keep it up.