2 weeks after their Successful Diplomat with the Lizarmen and It's leaders

After their Talks with the Lizardmen and It's Leader Just like the other Factions They Let them Cross their Border for some Hunts of It's Wild Beast But only Minimum since the Lizardmen wanted them to be Tamed and So The Ultramarines Only Brought Small Amount of it's Dinosaurs 

Except those that are Creatures of Chaos and so they Happily Killed them without any Remorse

And Some of these Incursion are fighting Against the Skaven whom who have been Infested the Forest of Lustria for quite some Time and so they Deal with this With Fury as they kill any Skaven Settlement they saw 

As some of these Skaven have Conducting Experiments of their own Kind as they making them More Beast for War and The Ultramarines, Deathwatch and Custodes Deal With them Fast Before they could Ever Pose a Serious Threat to the Lizardmen Empire

They Even occasionally Fight against the Norscan Raiders, and the Space Marine Just Killed them since they are all Chaos Worshipers

They Even fight some Adventurers whom they Warn not to Steal anything But they are persistent for their Treasure hunting that include weapon Rumors But Mostly the Lizardmen have done this Things as they will not Want the Space Marines to have killed a Fellow Human

The Space Marines Even Help the Lizardmen for their Lose Temple City Reclaim and with it, they can now Produce even bigger army for the Defense of their Jungle

And so The Lizardmen Reward the Space Marines, Like jewels, some gold, Weapons like Spear, Mace ETC and it Depends of what's anything that are useful for Trophies

________________________________________________________________________________________________________

Ultramar's Honor Mess Hall

After quite some mission last Day they go to Mess For Eat, and For Some Entertainment

"Ah what a Day"said Nath as they Seat and Put there Treys and Begun to Eat "Good Hunting Brothers and Cousins"

They raise their bottles and Drink

"And what did you Hunt Brother?" Ronan ask as he eat

"Well the Carnesour" Said Nath "The T-rex in this Planet. hard to kill but with a Good Equipment  and a Handler It's Easy to kill the Prey" he smiled as he eats his Roasted Pork

"How about you Ronan?" said Habriel

"Stegadon, a Hard Beast to kill"Said Ronan "They have good Armor that is able to withstand even Bolters" he added

While They are Eating they are watching Lord of the Rings

"So much for One Right" said Remus

"Well, These Hobbits are like what Children to me" Said Habriel

"Your right They are the size of children" said Avincus

"Looked at Gandalf Poor Old Man have to Sacrifice his life to fight off the Balorg" Said Joshua

"It appears is Lady Galadrial has a Way of seeing the Past, Present and Future" Said Marcus

"I liked this Fellowship" said Varro "But i don't Like Boromir he is suspicious Enough to me" He added as he Eat

"Your right, That Ring is Corrupting him, Hope Aragorn, Legolas, Gimli, Merry, Poppin and Sam Protect Frodo" Said Remus

"That Saruman is a Traitor he deserves to Die" Said Nath

"Yeah, and Now he is Serving the Dark Lord" said Ronan "And Creating an Army of his Own"

"Well Good News it" Said Habriel "These Orks are Far Weaker than the Green ones that we Fought, Well Unless they have Large Numbers"

"Commander Ronan Belleza, you are in Need to the Bridge" said Athena

"Welp Another Mission" Said Ronan as he Stand

_________________________________________________________________________________________________________

Bridge

"What is it Father?" said Ronan

"Some of Empire's City is Being Siege" said Guilliman

"And Who are the ones who Besiege It?" Ronan ask

"It appears the Warriors of Chaos Attack" Said Guilliman as he show him the Video

Ronan Clench his Fist "It appears they attack, With Beast and other Chaos Creatures" said Ronan

"How many are they" He ask

"I Estimate it to be 15,000 Troops not Including the Giants, Trolls and other Chaos Beast" Said Athena

Ronan Nod "I will go at Once Father" Said Ronan

"Go on, My Son, And Be Prepared as well if they Summon a Demon then you must be Ready for it and Call for Reinforcement if needed" Said Guilliman

"By your will Father" said Ronan as he Salute and walk away

________________________________________________________________________________________________________

Mess Hall

"Brothers! Cousins and Honored Custodes!" Ronan Shouted

With it they stop of what they are doing for now

"There is a Siege of one of the Empire's Cities" Said Ronan as he walk 

"Do you Know Who are the ones who siege the City?" He ask 

"Who is it brother?" Said Joshua

"The Warriors of Chaos, Along with Beastmen and Creatures of Chaos" Said Ronan

There was a Silence

"Our Mission is to Eliminate the Threat and Erase Them as Fast as possible before they Could summon Demons Espicially the Greater Demons, and So your Ammunition must be psycic Bolt" said Ronan "SO are you up to the Challenge?" He ask

With it Many of them Stand

"We are Ready for Combat Commander "said Nath

"Me and my Brothers as well"

"Good, Suit Up now Brothers Let's go to Battle" Said Ronan

With it they Begun to go to their Armor and then Hanger

______________________________________________________________________________________________________

Time skip

2 hours

There is about

2,500 Ultramarines, 500 Custodes, 30 Knights and 5 Titans (Warhounds and Reavers Class)

"Alright Brothers and Honored Custodes we are now Nearing to Our Designated Location" said Ronan

"We will Attack them from the Rear as well as their Left and Right Flank With Lighting Fast Strikes, and we attack them Hard and Soon Most of their Numbers will attack us, And We have the Firepower that we need to destroy them

And Since we are Fighting against Their Elite Warriors, The So Called Chaos Warriors, these Time they have both armor and Equipment for War and they are all Battle Hardened Warriors, they have another Elite Called the Chosen as they have a Greater Gifts from their abominable gods

And It's Time to Remind Why we are the Bulwark against the Terror and the Defenders of Humanity!" Said Ronan in his Speech

With it the Ultramarines and Custodes, As well as the Knights and Titans Pilots Cheered

They saw the Cities is Being Besiege

With it Bombers Flow First as as Fighters as they Begun to Bomb the Rear Part of the Army in the Center where their Numbers are it's Strongest

They Begun to fire their weapons It killed Hundreds to Thousands Only in Second as bombs, Bullets, Plasma, Missile and Rockets Rained upon them

Because of their Surprise attack They are Disorganize as the Bombers and Fighters are having Killing them in the Hundreds

All Transports Land and Deploy all of their Deadly Cargo

"Alright Brothers Go go go!!" Shouted Ronan as he Exit

They are Close to the Disorganize Rear and Begun to kill any Chaos Warriors that Bar in their Way

Assault  Marines and Inceptors begun to Jump and Kill the Chaos Warriors with their Chainsword and Bolters as they Cut them Down

The Knights with Range Weapons Fired upon both Infantry and Monsters as they obligirate them  

While with Melee Weapons Charge as they Crush any Infantry that are unfurtunate enough in their way as they Crush them with their Massive Foot

And Proceed to Fight their Giants and other Monsters

"Take This Chaos Scum!" Said Nath as he Cut a Chimera head and Blasted by a Plasma Cannon from one of the Devastators

A Custodian Cut a Dozen Chaos Warriors with his Spear and with it the Chaos warriors looked at him with Fear Dispite being Worshipers of Khorne even the Berzerkers their Frenzy Stop and Looked in shock at size and Power of the Space Marines and Custdoes as well the Knights and Titans

A Warhound Titan with Vulkan Mega Bolter and Inferno Gun along with Smaller Knights both Range and Melee Weapon Begun to advancing as they Burn them and Destroy them

 Ronan Killed another 7 Chaos Chosen as their Weapon could not Pierce his Armor

He is with his Honor Guards 

as well as the Bladeguard Veterans as they Charging through the Center of the Enemy Formation 

A Chaos Giant smash it's club to them they Dodge 

Ronan Fired his Plasma Pistol and Hit the Giant's Head and kill it

a Bladeguard Cut a Chaos Chosen with his Sword as the Chosen attemp to block it with his shield but the power sword Cut through it and proceed to Cut the Chosen in half

Then suddenly a Chaos Beast Appeared in front of them 

It strike with it's Tentacles they Were able to Block it with their Shield or their Swords and Axe

"We face them before and let's kill these Beast!" said Ronan as he attack it he fired a Quick burst of plasma to the beast and it scream in Pain

Others Follow him to battle it 

It swung one of it's Tentacles Hitting 6 Ultramarines

a 10 Custodes are being Circled by their Enemy as they to kill them with their Numbers, But With their Coordinated tactics they were able to kill the Warriors of Chaos

Varro Tigrerious Unleash a Powerful Vision to their Enemy as they saw Visions of their Death with Horrible way and Hear the Cries of a Suffering of their People

and it does stop Screaming they Begun to cut themselves with their Weapons as they don't want to hear it anymore and so they killed themselves in the Hundreds

another Librarian kill a Chimera with his power sword then kill another 4 beastmen with his bolter "That's For joining the Chaos" he said and Electrifies a Sorcerer who attacks him with Chaos Magic but Fail as he Counters it with his own psychic powers

While Ronan Jump and push his Sword Down to the Chaos Beast to it's mouth and kill it

Every Chaos Warriors is backing away in Fear as they Murmur themselves

"How could being don't feel Fear?" Said one of the Chaos Warriors

"Don't Know their Hate too Much even for us"

"They don't Even Fear our Beast how is that possible"

"Whatever beings they are, They are Certainly Hates us more that these Weaklings we kill"

And not for long Ronan and the Ultramarines Attack them  with blinding speed

"Kill every Last one of them!" said Ronan as he Kill 4 Chaos Chosen with his sword and another 7 of his Plasma Pistol

"Commander Ronan I'm Detecting Warp Signature" said Athena "They are summoning Demons!"

With it Bloodletters appear from a Portal and Begin to attack

"Slaughter them all!" Said the Bloodletter

With it they Battled

But what the Bloodletter's din't Expect is that the Space Marines and Custodes are stronger than they had thought

and worse of all

They know to Kill them

And their Pressense Did not Even affect them as if they're discipline is too Much inhuman even to the Bloodletters

As they Battled Ronan able to kill 3 Bloodletters

"How?!" said one of them in Anger

"How could you kill one of us!" They in Anger

"Simple i just want to kill you Demon!" Said Ronan as he his Brothers attack and kill the Bloodletters easily

The Custodes Begun to join as well

Dreadnoughts kill trolls after Trolls as well as Infantry as they Crush them with ease as well as gunning them down

Predator Tanks Lay Waste to Both Infantry and Monsters

"Go back to Hell you abomination!" Said Redemtor Dreadnough wielding a power sword as he cut 7 Bloodletters

"This is Nothing New" said a Custodes Warden as he hack a Chaos Champion in half with his Castelan Axe

Then suddenly a Bloodthirster Appeared from the Sky

"You will Die For this Space Marines, i do not know who you are but your skull is mine!" it said

"Oh Shit a Greater Demon is here" said Joshua after killing a Giant

"Concentrait your Firepower on that Bloodthirster" said Ronan

Their Weapons aimed at the Bloodthirster as it kills several Space Marine their First Casualties

"Oh shit" Said Nath as he Duck from the incoming axe

Then knights begun to Fight it

A knight with Chainsword and Powerfist able to Fight it Toe-To-Toe

"A Worthy Challenge good" said the Bloodthirster

"I will sent you back to the Warp Demon" said the knight as she Readied herself

With it they Battled

Ronan Run Towards it as he Fired his Plasma Pistol to It

While Killing anyone who is In Front with him he is with his Honor Guard and Bladeguard Veterans

As they had already kill Many of the Chaos Warriors

And now The Empire's Soldiers Begun to push them back in their City as they have the Number advantage as well as Weapon as their Muskets pierce through the Chaos Armor

The Bloodthirster is able to sweep away the knight Before it brough it's axe low

Ronan Fired his Plasma pistol that which it block it

It saw Ronan Charge towards it and it attack Ronan as well

It swung down it's Axe, Ronan able to Block it with his Powersword and it Brought low to it's knees

"Brothers it's weaker than our own!" said Ronan as More shots are being Fired to the Bloodthirster

"His Right Kill it Now!" said Habriel as he Join their Fight as his weapon is forge to kill demons as well

As their Ammunition are all blessed as each shot has more Damage to the Greater Demon than the Standard Ammo

Habriel is able to Damage the Demon's Leg

Then Nath with Other Assault Marines Jump and Cut off the Demon's Arm

And then Ronan Stand and Jump and Brough his Sword and Thrust it to the Demon's Head

As it Falling Down and Vanish into thin Air

Everyone in the Battle

Both the Imperials and Chaos Warriors Looked in Wide eyed

Never in their Dreams to see an Army like this could able to Take Down the Greater Demon of Khorne

in less than 5 Minutes

To the Empire's People they are wide eyed and Cheered to the Victors

To the Warriors of Chaos it Horrified to see the Army Before them Brough low Khorne's Most powerful Servants

The Bloodletters cry in Pain as if their Time is Finish

"How did you kIll the Greatest servants of our MASTER!" They shouted in anger "I have never seen the Beings like you What are you"

"We are no Ordinary Mortal Demon" said Ronan "We are more Than Mortal, We are steel and we are Doom, We are the Champions of mankind!" With it Ronan Swing his sword and the Remaining Demons are killed

"Kill the Rest" Ordered Ronan

With it They killed all the Remaining Chaos Warbands

after 10 Minutes of Fighting the Battle is Over

"Well it after this Battle it will Send them a Message not to Mess with us" said Varro

"I know Brother, and the Chaos gods will likely to see us as a another Things to be Corrupted" said Ronan

"Do you Think that will formulate a Plan to Beat us?" Said Habriel

"Possible since they do not Know us"said Ronan

"But we do know them as well as their strength" he added

"And your Right about these Greater Demons" said Nath

"Their Weaker than our own Universe it should even take Longer than this, Even i'am adept of killing and Defeating this is the Fastest Records i have" said Ronan "Hell This is Even quicker than the Grey Knights Fastest Records"

"I know Brother" said Joshua

"This Aftermath will a wildfire among this Planet" Said Nath

Ronan Nod "And I'm still Surprise This Planet is still Standing how weak are These Chaos gods could not even destroy a Single Planet< let alone a Thousand Year?'

"And Not To mention these planet don't have a Technology that could even challenge their Demons, only Powerful heroes with Magical Weapons" Said Habriel

"Even a Single Greater demon could conquar an Entire sector depends of how powerful they are" said Joshua

"For now we will Return to the ship i need a Rest" said Ronan

"good plan Brother Let's Return we already have talks to the City's In Charge" Said Nath

They Return to their Transport and Begun to Return to their Ship

And with their Battle and Defeated the Armies of Chaos is no Small Feat to the People in this planet

And Now

They will Learn how powerful are the Space Marines Since they are able to kill a Greater Demon like they are killing a ordinary Giant

And Most of all

The Chaos gods and their Servants will learn that some of their Weapon could kill their minions Permanent

_______________________________________________________________________________________________________

And Done

This is their First Battle with the Warriors of Chaos

They killed a Greater demon like it Nothing

See you Next Time Folks