system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Trek] What if the Federation designed a pure warship?

Basically a *USS Defiant*, but on the scale of a Galaxy-class cruiser. No luxurious living quarters or crew amenities, just overpowered engines and weapons on an overbuilt starship chassis. I'm talking the fastest, shootiest, tankiest vessel this side of the Alpha Quadrant. 

What exactly would it be capable of? What nasty surprises would bloodlusted Starfleet engineers build into it? How would it compare to the ships of other factions, and how would those factions react? Any era is fine, but I'm hoping for answers from the late 24th century.
gpt
Sovereigns already have like 10 torpedo launchers and generally top-of-the-line weapons and defenses. So how do you build the "War Sovereign?" Upgrade to bigger versions of the Warp 9.975 engines from the Intrepid-class. That's a substantial increase in cruising speed. Then add the improvements made in the Prometheus-class: better armor and shields, EMH holoemitters throughout the ship, high levels of automation, and a fully practical version of multi-vector attack mode. This further cuts down on the amount of crew needed.

Replace the holodeck with several compact holosuites air-gapped from the ship's systems. They are very valuable for training, but independent power supplies are needed, because absolutely no cross-connection with any other Starfleet systems can ever again be allowed.

Upgrade the navigational deflector and power systems to easily fire the mega-pulse attempted against the Borg in Best of Both Worlds. Equip with the phasing cloak, which allows moving through solid objects. Carry Genesis-effect torpedoes for ecologically safe planet busting.

Finally, install a new bay just aft of the bridge: main security. Under combat conditions, main security is responsible for continuous monitoring to fight espionage threats. Here the staff and their computer systems constantly monitor the status of ship and crew, ensuring that the War Sovereign's captain will never be forced to have this exchange: "Computer, where is Lieutenant Smith?" "Lieutenant Smith is not on the ship."

Oh, and there's still a bar.