Thanks for the feedback! I'm really glad you like the sprites, a lot of care went into making them.
Let me try to clarify a bit around why the weapons are the way they are and what I am trying to accomplish.
The Ichneumon AG is supposed to be equal in power to the Light AG, but more focused on burst damage. Vanilla gameplay in Starsector makes a point out of the risk of trying to finish off overloaded ships: small ships usually need to get close to them in order to deal HE damage, while larger ones get the luxury of being able to threaten from range. I don't want every BR ship to be a kiting ship, I want them to use the mobility to dart in and out of combat and deal their damage more or less up-close. That's why the Shard and Ichneumon fire bursts of projectiles.
However, I had considered to create a weapon that deals light mortar-style DPS at higher flux cost, and has 900-ish range. A sort of light artillery cannon for sneaky Locust and Mantis variants. A HE light needler should have enormous flux costs or OP costs or it would make every other small sized assault weapon superfluous.
The Argus is supposed to be the best alternative for destroying missiles and low-tech fighters if you have the flux and OP. It very easily wastes flux if it fires on enemy shields due to the damage type and huge flux costs. But if you have an Argus PD, you are very, very safe from enemy missiles. That is my design philosophy for it, at least - if it needs readjustment in line with this idea, then I'm more than willing to make them. And iirc frag damage is 25% against armor and shields, so your calculations are off.

If you want to see just how much more effective the Heavy Burst Laser is at actually hurting enemy ships than the Argus, arm a ship with a single Argus/Heavy Burst Laser (use the Desdinova) and then try to kill a Buffalo II using no other weapons in the simulator. It takes almost twice as long to kill it using the Argus. And this is an unshielded ship that mainly uses hull to soak damage.The Interdiction Array is very experimental currently. However it does more than simply tint enemy projectiles. It stops missiles dead in their tracks if the engine has burned out (like Annihilators) and makes Hellbores, Arbalests, Assault Chainguns and such useless because the AI does not move closer to compensate for the projectile falloff. Ideally the system should force ships to fight much closer, but right now the AI does not seem aware of changes to projectile speed brought on by a stat mod.
LazyWizard: I thought the Fury did 2500 damage, not 3500... I think it probably overshadows the Reaper a bit in this case. I'll make some adjustments!