But why stick to namby-pamby names?
I've got a whole names file full of 'extreme' names for ships. Beside the obvious like 'Blitzkrieg' or 'Heavy Hitter' I've got lots of ambiguous Catch-22 type names for the general 'I hate this' flavor of war that no 'realistic' empire would ever use.
(Edited to fix the word 'sh-t' in several of these triggering automatic censorship...)
Acid Test
AckAck
Apocalypse Now
Arm Twister
Armageddon
Artful Dodger
***-kicker
Attitude Adjuster
BackbLast
Bad Attitude
Badass
Ballistic
Bare-knuckles
Battle Fatigue
Battle Rage
Bangstick
Big Stick
Blazer
Blind Ambition
Blitzkrieg
Blockbuster
Bloodbath
Bloodlust
Bodacious
Body Count
Body Slam
Bomb-thrower
Bone Crusher
Boomer
Boomstick
Braveheart
Brawler
Brickbat
Brinksmanship
Bullyboy
Can O'Whupass
Cannon Fodder
Carpet Bomber
Catch-22
Character Builder
Clenched Fist
Clobberin' Time!
Clue-by-four
Code of Honor
Coffin Nail
Cold Steel
Collateral Damage
Combat Fatigue
Cowabunga!
Crackdown
Crash-n-Burn
Crispy Critter
Crossfire
Crump
D'ooh!
Dangerous Mischief
Deadeye
Death Becomes Her
Death's Door
Death's Head
Deep Sh-t
Demolition Man
Derring-do
Devil Made Me Do It
Devil's Advocate
Die-Hard
Diminishing Returns
Diplomatic Incident
Dirty Harry
Dirty Trick
Disciplinarian
Disturbing Behavior
Dog of War
Doom Team
Dope Slap
Dr. Strangelove
Drill Sergeant
Equalizer
Escalation
Excessive Force
Extreme Prejudice
Famous Last Words
Feeding Frenzy
Fightin' Words
Fine Red Mist
Fire in the Hole
Fist of Death
Flagwaver
Flaming Death
Flash Point
Flashbang
Flashpoint
Force Majeure
Foxhole Strategist
Fragger
Freak of Nature
Freefire
Friendly Fire
Full Metal Jacket
G. I. Joe
Game Over
Gangbuster
Gay Saber
General Scheisskopf
Genocidal
Glory Hound
Glutton4Punishment
Gonzo
Gravedigger
Grim Determination
Grim Reaper
Grizzled Veteran
Grim Determination
Grim Reaper
Groundpounder
Grunt
Gunboat Diplomat
Gunga Din
Gung Ho
Hammerhand
Happy Warrior
Hard Target
Haymaker
Heavy Hand
Heavy Hitter
Hell on Wheels
Hell to Pay
Hell, Yeah!
Hellacious
Hobnailed Boot
Holy Hand Grenade
Hot Sh-t!
Hulk-out
Hunter-Killer
Idle Boaster
In Your Face
Incoming Fire
Interventionist
Iron Boot
Iron Fist
Iron Hand
Jingoist
Jack D. Ripper
John Wayne
Jolly Roger
Junkyard Dog
Juvenal Delinquent
Kick-***
Killer Tomato
Killjoy
Kilroy
Kiss My ***
Kiss My Pouch
Kitbash
Knockout
Knuckle Sandwich
Knuckle-dragger
Last Laugh
Leatherneck
Lebensraum
Lesser Evil
Lex Talionis
Lock & Load
Lone Ranger
Loose Cannon
Machismo
Macho Man
Mad Max
Magic Bullet
Mailed Fist
Major Whoops
Make My Day
Manifest Destiny
Martial Artist
Mass Destruction
Mass Slaughter
Master BLaster
Master of Disaster
Metal Storm
Mettle and Metal
Might Makes Right
Military Brass
Military Brat
Milo Minderbinder
Missed Me!
Mission Creep
Mortician
Mostly Harmless
Mr. Clean
Murphy's Law
Necessary Evil
No More Mr. Niceguy
No Quarter
Official Denial
Oh Sh-t!
Outflanker
Overkill
Panic Button
Party Pooper
Patriot
Peacekeeper
Peacemaker
Piledriver
Pit Bull
Plausible Deniability
Police Action
Police Brutality
Problem Child
Provocateur
Quartermaster
Rabbit Punch
Raging Bull
Railsplitter
Razorwire
Rambo's Delight
Read My Lips
Ready2Rumble
Realpolitik
Rebel Yell
Redshirt
Right Stuff
Risky Business
Roid Rage
Rough Justice
Rough Rider
Rude Awakening
Scorched Earth
Scrubbing Bubble
Search and Destroy
Sgt. Slaughter
Silver Bullet
Shellshock
Sharp Elbow
Sh-t Happens!
Sh-t-can It!
Shock Wave
Short Fuse
Shrapnel
Slagger
Slam-bang
Slam-dunk
Smackdown
Smoking Gun
SNAFU
Sniper Check
So Much For Subtlety
Soldier of Fortune
Sound and Fury
Space Cowboy
Spaceman Spiff
Spit-n-Polish
Spray-n-Pray
Standard Deviant
Star Knight
Starfire
Starship Trooper
Steel Rain
Steely Glint
Stonewaller
Strongarm
Stupendous Man
Sucker Punch
Sudden Death
Sunday Punch
Super Trooper
Taskmaster
The Art of War
The Last Word
Titanium Cranium
Ton of Bricks
Top Gun
Tough Customer
Tough Guy
Trigger-happy
True Grit
Turkey Shoot
Underdog
Undertaker
Unnecessary Roughness
Your Worst Nightmare
Vicious Circle
Vorpal Bunny
Wag the Dog
Wallop
War Criminal
War Whoop
War Wimp
War-hawk
War-horse
Wargasm
Whack-a-mole
Widowmaker
Wild Child
Wild Thing
Xenocidal
Zorch