This mod renames creatures in dogtown1's monster mod to more lore friendly names. It also adds tons upon tons of new creatures to Monster Mod. Then, it also takes gives named creatures unique models. This is compatible with all the DLCs.

The mod also comes with a unique companion named Tholdrin. He's an intelligent Deathclaw. He's somewhat knowledgeable about some of the creatures added by this mod and you can ask him about them. He supports an independent Vegas but will follow you no matter who you support. 

Keep in mind, when you encounter a creature called a Werewolf, it is not a man transformed into a wolf. Its a a highly mutated canine. Or when you encounter a creature called a Hellhound, it is not a dog from hell. It is a spliced creature like a Cazador or a Night Stalker. People often name the creatures of the Fallout world based on their appearance, and a mutant called a Troll is called a Troll because it looks like a Troll. Not that it is an actual Troll. Just like Wanamingos used to be called Aliens even though they're not Aliens, or that Centaurs aren't actually Centaur.

Companion location hints:
Tholdrin: Near the place where everyone else puts their damned companions. It is a place with a lot of Geckos.

Please submit screenshots and tell me stories of your encounters!

If you have suggestions of creatures you want added or renamed, feel free to suggest.

Features:
-Tons and tons of new creatures that are integrated into the leveled list and into the world.
-Various creature variants to show how random mutation really is.
-Unique and challenging enemies.
-Crimson Caravan Traders might spawn with a Pack Brahmin, a Brahmin Bull, a Pack Bighorner, a Pack Yao Guai, a Pack Giant Mole Rat or a mercenary.
-Lore friendly names for original Monster Mod creatures.
-Proper factions assigned to original Monster Mod creatures.
-Some crashes from Monster Mod fixed.
-Some bugs and oversights from Monster Mod fixed.
-Unique models for unique NPCs.
-Rare Supermutant and Ghoul mercenaries.
-Very, very rarely a King will spawn as a Ghoul. Once again, this is very rare.
-Classic Fallout creatures such as Pig Rats, Floaters, Dwarves, Mirelurks, Behemoths, Trogs, Intelligent Deathclaws, Bloodmen, Hoover Dam Trogs, and Wanamingos.
-Many new variants of vanilla and Monster mod creatures.
-Some Super Mutants from this mod will appear in Jacobstown.
-Powerful bosses
-One unique companion.
-DLC compatibility
-New weapons
-New armors
-The YCS/186 Gauss Rifle can now be obtained by Wild Wasteland users.
-The Alien Blaster can now be obtained by non-Wild Wasteland users.
-Alien Super Mutants drop Alien Power Cells so you can use the Alien Blaster without feeling bad about it.
-Ravens are back. The original Monster Mod removed Ravens from the game, but this mod brings Ravens back and allows them to spawn with vultures.

Daedra1 made a JIP avatar for Tholdrin:
http://www.nexusmods.com/newvegas/mods/59336/

Here is a list of changes:

New Creatures:
-Alien Super Mutant
-Nukaclaw
-Radclaw
-FEV Enhanced Deathclaw 
-Troll
-Ultraviolet Deathclaw
-Nukarat
-FEV Enhanced Behemoth
-Remnant Super Mutant
-Two-Headed Yao Guai
-Nuka Guai
-Two-Headed Nuka Guai
-Nukaroach
-Glowroach
-Pig Rat
-Cyclops
-Nightkin Cyclops
-Giant Mole Rat
-Hell Mole 
-Cyborg Abomination
-Nuka Scorpion
-Glow Scorpion
-Nukafly
-Glowfly
-Evolved Lakelurk
-Ghoul Mercenary
-Supermutant Mercenary
-Buffout Mutant
-Nuka Ghoul
-Deathclaw Hatchling
-Shadowclaw
-Cyberclaw
-Lesser Hellhound
-Dire Hellhound
-Lesser Hell Beast
-Dire Hell Beast
-Super Mutant Behemoth
-Nightkin Behemoth
-Werewolf Mongrel
-Dire Wolf
-Dire Coyote
-Nasty Floater
-Bloody Floater
-Acidic Ant
-Bloody Ant
-Mirelurk (3 variants)
-Swamplurk (2 variants)
-Mirelurk Hunter
-Radlurk
-Nukalurk
-Mirelurk Hatchling
-Yao Guai Cub
-Nuka Guai Cub
-Chimera Cub
-Mutated Mantis Nymph
-Giant Mole Rat Pup
-Wild Piglet
-Glowing Security Rambler
-Feral Security Rambler
-Geckclaw
-Dwarf
-Dire Chupacabra
-Hell Mole Pup
-Hell Mole Giganteus
-Greater Nukafly
-Super Mutant Gargantuan (3 variants)
-Decrepit Ghoul
-Degenerate Hound
-Dire Vicious Hound
-FEV Enhanced Gargantuan (3 variants)
-Lesser Wanamingo
-Greater Wanamingo
-Wanamingo Hatchling
-Wanamingo Queen
-Trog Fledgeling
-Trog
-Trog Brute
-Trog Savage
-Super Ghoul Gargantuan (3 variants)
-Cyclops Gargantuan (3 variants)
-Nightkin Cyclops Gargantuan (3 variants)
-Nightkin Gargantuan (3 variants)
-Minotaur Gargantuan (4 variants)
-Gecko Master
-Minotaur Shepherd
-Cateye Mutant
-Mechanically Enhanced Brinelurk
-Intelligent Deathclaw
-Feral Behemoth
-Evolved Radroach
-Feral Nightkin
-Feral Super Mutant
-Feral Nightkin Behemoth
-Feral Super Ghoul
-Glowing One Behemoth
-Super Ghoul
-Super Ghoul Brute
-Super Ghoul Master
-Gecko Mauler
-Shadowclaw Assassin
-Shadow Hound
-Lesser Shadow Hound
-Dire Shadow Hound
-Cyborg Monstrosity
-Wolfman
-Feral Trooper Rambler
-Glowing Trooper Rambler
-Gecko Brute
-Golden Gecko Brute
-Feral Rambler Reaver
-Malnourished Brahmin Bull
-Malnourished Bighorner Bull
-Fiend Brahmin Bull
-Fire Gecko Mauler
-Cazaclaw (2 variants)
-Cazaclaw Alpha
-Young Cazaclaw
-Fury Mutant (2 variants)
-Super Mutant Overlord (5 variants)
-Mutated Pig Rat
-Mean Pig Rat
-Tough Pig Rat
-Giant (3 variants)
-Giant Brute (3 variants)
-Giant Berserker (3 variants)
-Feral Trooper Reaver
-Feral Trooper Reaver Rambler
-Two-Headed Feral Trooper Ghoul
-Two-Headed Feral Trooper Rambler
-Mutated Mantis Nymphling
-Lesser Mutated Mantis
-Wild Razorback
-Greater FEV Subject (2 variants)
-FEV Subject
-Mutated FEV Subject (2 variants)
-Greater Mutated FEV Subject
-Bloodman Rambler
-Mutated Bloodman Rambler
-Mutated Bloodman
-Evolved Mole Rat Digger
-Colossal Yao Guai
-Colossal Nuka Guai
-Two Headed Colossal Yao Guai
-Hell Mole Queen
-Giant Mole Rat Queen
-Chimera Pride Leader
-Rad Abomination
-Cave Mutant Overlord
-Fire Gecko Brutalizer
-Bloodman Ripper
-Mutated Bloodman Ripper
-Super Mutant Grunt
-Nightkin Grunt
-Evolved Glowroach
-Remnant Behemoth
-Fiend Psyker
-Evolved Yao Guai
-Intelligent Deathclaw Grunt
-Mirelurk Prince
-Pack Yao Guai
-Cave Rat
-Mole Rat (Fallout 1 & 2 style which were mutated moles, and not naked mole rats.)
-Radiated Rat
-Tough Rat
-Lesser Mole Rat
-Mutated Mole Rat
-Mutated Cave Rat
-Albino Mole Rat
-Lesser Cave Rat
-Giant Albino Mole Rat
-Evolved Albino Mole Rat
-Albino Hell Mole
-Cyberhound
-Rat Mole Pup
-Mutated Mole Rat Pup
-Mean Rat Mole
-Radlurk
-Nukalurk
-Evolved Lakelurk
-Evolved Mirelurk King
-Evolved Lakelurk Guardian
-Albino Night Stalker
-Albino Death Stalker
-Vicious Cougar
-Panther
-Ocelot
-Cave Mutant Grunt
-CRB-S
-Vicious Wolf
-Vicious Coyote
-Vicious Jackal
-Coywolf
-Jackal
-Centaur Horror
-Mutated Floater
-Bloody Centaur
-Lesser Floater
-Evolved Floater
-Evolved Wanamingo
-Mutated Wanamingo
-Greater Wanamingo
-Legendary Wanamingo
-Wanamingo Queen
-Super Ghoul Grunt
-Evolved Centaur Horror
-Bark Scorpion Beetle
-Mutated Bark Scorpion
-Giant Bark Scorpion
-Radscorpion Beetle
-Mutated Radscorpion
-Acidic Anttula
-Blood Anttula
-Anttula Worker
-Giddyup Buttercup
-Greater Centaur Horror
-Nasty Rad Mantis
-Nasty Mantis

DLC Patch:
-Zion Werewolf
-Zion Hell Hound
-Lesser Zion Hell Hound
-Dire Zion Hell Hound
-Green Gecko Mauler
-Green Gecko Master
-Green Gecko Brute
-Mountain Minotaur
-Shadowclaw Alpha Male
-Feral Marked Men
-Police Cyberhound 
-Military Cyberhound


Renamed Creatures:
-Spike -> Wanamingo
-Alien -> Evolved Wanamingo
-Alien Guardian -> Greater Wanamingo
-Alien Hybrid -> Legendary Wanamingo
-Khazra -> Intelligent Deathclaw
-Khazra Warrior -> Intelligent Deathclaw Warrior
-Khazra Alpha -> Intelligent Deathclaw Master
-Hybrid -> Minotaur
-Giant Zombie -> Glowing Cave Mutant Behemoth
-Giant Ghoul -> Super Ghoul Behemoth
-Battle Droid -> Battle Drone
-Security Droid -> Security Drone
-Trooper Droid -> C-27 Humanoid Robot
-Storm Droid -> Storm Drone
-T-800 Terminator -> Tesla Bot
-Alpha Sentry -> Sentry Drone
-Assassin Droid -> Assassin Drone
-Som of Dead -> Glowing Father
-Death Geck -> Gecko Shadowclaw
-Death Mole -> Evolved Mole Rat
-The Undead -> Ancient Ghoul
-Carrion Beast -> Plagueclaw
-Rex -> Ramclaw
-Tech Alien -> Brinelurk
-Tech Alien Warrior -> Brinelurk Warrior
-Tech Alien Elder -> Brinelurk Elder
-Centaur Zombie -> Centaur Abomination
-Thing -> Degenerated Centaur
-Facehugger -> Mutated Scorpion
-The Doctor -> Surgeon
-Ghoulish Beast -> Ghoul Hound
-Mutant Beast -> Chupacabra
-Lurker -> Lakelurk Guardian
-Stalker -> Trog Stalker
-Giant Stalker -> Savage Trog Stalker
-Wild Cat -> Bobcat
-Gecko Brute -> Fire Gecko Brute
-Gecko Mauler -> Golden Gecko Mauler
-Gecko Warrior -> Golden Gecko Warrior
-Mosquito -> Bloodbug
-Zombie -> Bloodman
-Yellow Jacket -> Cazador Yellow Jacket
-Hive Queen -> Cazador Queen
-Desert Ghoul -> Hoover Dam Trog
-Ghoulspawn -> Hoover Dam Trog
-Reaver -> Wight
-Giant Reaver -> Giant Wight
-Dozer -> Mutated Mole Rat
-Giant Dozer -> Giant Mutated Mole Rat
-Plague Rat -> Mutated Rat
-Mutated Mole ->Mutated Albino Mole Rat
-Claw Beast -> Mutated Mantis
-Antchula -> Anttula
-Scorp Beetle -> Scorpion Beetle
-Hornet -> Bloatfly Hornet
-Evolved Lakelurk -> Evolved Lakelurk King


Updated Creatures:
-Bighorner Calf
-Bighorner Bull
-Malnourished Brahmin
-Burning One
-Ghoul Hound
-Wanamingo
-Trog
-Deathclaw Hatchling
-Intelligent Deathclaw
-Intelligent Deathclaw Warrior
-Intelligent Deathclaw Master
-Alien
-Malnourished Brahmin Calf
-Brahmin Calf
-Malnourished Bighorner Calf
-Malnourished Bighorner
-Brahmin Bull
-NCR Guard Dog
-Rotting Brahmin
-Dead Brahmin
-Tesla Bot

DLC Patch:
-Yao Guai Cub
-Mountain Bighorner
-Mountain Bighorner Bull
-Mountain Bighorner Calf
-Lost Mountain Bighorner Calf
-Whitelegs Mongrel

Named creatures given new model/armor:
-Snuffles
-Cheyenne
-Violetta
-Moe
-Fisto
-Mean Sonofabitch
-Queenie
-BoneGnash
-GnashBone
-Legendary Deathclaw
-Legendary Gecko
-Driver Nephi
-Duke
-Lupa
-Fluffy
-Jitters
-Alien Captain
-Chavez
-Eddie
-Convict Leader
-Rey
-Audaz
-Colmillo
-Fiel
-Reina

DLC Patch:
-Ghost of She
-Ghost of She's cubs
-Stripe