He could see stairs ahead leading upwards carved through the rock. The majority of the cavern's defenders were gathered at their base behind hurriedly constructed barricades of crates and barrels. Another group was clustered behind a pair of giant bulldozers, firing from behind their yellow bulk at the invaders. Guessing the controls for the door were housed here, Forrix charged forwards through the hail of shots, his armour easily deflecting the defenders' pitiful fire. He and his Terminators fired their combi-bolters across the flanks of the bulldozers, explosive shells killing a dozen soldiers and ricocheting from the dozers' flanks with flaring detonations.
More Terminators headed for the soldiers guarding the stairs as Forrix rounded the forward edge of the closest bulldozer and hosed the men there with bolter fire. Grenades burst harmlessly around the Terminators as one man dived aside and swung a heavy rifle with a ribbed barrel towards Forrix.
A white-hot beam of plasma energy slammed into his chest, instantly obliterating the blasted iconography there and searing through layers of ceramite armour. Forrix felt the heat of the plasma scorch his skin and he staggered under the force of the impact. His Terminator armour had been forged on the Anvil of Holades on Olympia itself and its ancient spirit was as corrupt as he, and not yet willing to fall. Forrix recovered his balance and punched his power fist through the plasma gunner's chest in a shower of bone splinters, lifting the impaled body from the ground and hurling it through the air in a bloody arc.
Bursts of bolter fire and disembowelling sweeps of lightning claws silenced the resistance. Forrix strode to the access door controls on the far wall and wrenched the release lever into the ''open'' position. The doors screeched, the mechanisms protesting as their motors suddenly reversed and began to rumble open again. Forrix backed away and put three bolts through the control mechanism.
Satisfied the gun bay doors would not be closing any time soon, Forrix rounded the blood-splattered bulldozer, watching as his warriors with reaper cannons began slaughtering the remaining defenders of the cavern in controlled bursts of gunfire.
As the slaughter continued, the Guardsmen broke and ran for the steps. Those not quick enough to reach the cover of the stairs were shredded by the Iron Warriors' firepower, their screams drowned in the deafening roar of the cannons. Any not killed in the initial bursts were soon torn apart as the shells destroyed their barricade in an instant. Within seconds the entire defence was gone, only chewed up crates and mangled corpses remaining.
A single, terrified soldier suddenly broke from cover, sprinting for the stairs. Three cannons tracked him as he ran, but Forrix said, 'No, this one is mine.'
Forrix let the man get within a hair's breadth of safety before he fired his weapon.
Shells tore great chunks from the wall behind his victim, shattering several control panels.
As fast as the soldier had run, it was not fast enough. A single shell clipped his thigh as he twisted out of the line of fire, instantly shearing his leg from his body just below the hip.
He landed in a bloody bundle, shrieking in agony as he saw the ragged stump of his leg, its remains hanging by gory threads. Forrix smiled and marched across the rockcrete floor, stepping across the wide rail tracks to stand above the man. He was hyperventilating and staring in horror at his ruined leg.
'The hydraulic shock will drag the blood from your heart in a few seconds,' said Forrix, his voice distorted by his armour's vox-unit. The man glanced up, uncomprehending, his eyes glazing over as death drew near.
'You are lucky,' said Forrix. 'You will die before the Warsmith ascends. Thank your Emperor for that.'
The sound of battle faded and the cavern was theirs. Terminators hurried past him, eager to continue the killing.
He opened a channel to the remainder of his company.
'The lower level of the fort is ours. Send the rest of the men.'
Forrix lifted his eyes from the dying soldier and climbed the stairs to where two Terminators were attacking a wide set of steel doors, driving their powerful chainsaw-equipped fists into the junction of the doors.
Molten sparks filled the tunnel, spilling down the steps onto the waiting Terminators.
Honsou scrambled up the jagged piles of debris and loose rubble cascading down the breach in his wake. Twisted reinforcement bars jutted from smashed blocks of rockcrete like tendons, and dust fogged the air. Bright stabs of las-fire from above pierced the smoke in huge numbers, melting rock and hissing against armour. A bolt stuck his shoulder guard, staggering him, but he pressed on. A grenade burst at his feet, deadly fragments ringing from his armour and embedding themselves in his leg greaves.
He could see the enemy had cast down a barrier of rusted abatis, sharpened iron girders, crudely welded together to form waist-high obstacles to their charge. Honsou knew that the longer they were under fire, the less likely they were to be able to scale the breach. This was the point at which many assaults came to end, broken by obstacles and shredded by the defenders' fire.
For this attack to have any chance of success at all they had to mount the breach in one leap to overwhelm the defenders lining the parapet. Honsou tripped as the rocks slid out from beneath his feet, narrowly avoiding being obliterated by a shot from a lascannon. He pushed himself angrily to his feet and cursed as he saw three black-steel tubes bound together with packing tape clatter down the slope of the breach.
Honsou threw himself flat onto the rocks as the demolition charge exploded. The Shockwave dislodged whole swathes of rubble and he felt himself sliding back down the breach, his auto-senses kicking in to protect him from the deafening and blinding detonation. Two Iron Warriors were snatched away in the blast, their armour ripped open by the force of the demo charge. Honsou rolled upright, his armour smoking from the explosion and clawed his way back up the breach.
More shots riddled the shattered breach, vitrifying the rock and pitting the ground with bullet impacts. Honsou felt powerful impacts from a heavy bolter slam into his armour. Pain blossomed up his left arm as one shell found its mark in the gap between his vambrace and elbow guard. Fire from the bastion to the north delivered murderous flanking fire into his men. The sheer amount of enemy firepower was now telling. Honsou saw another Iron Warrior fall, his armour pierced by a smoking hole punched in his breastplate.
More grenades bounced down the breach. Honsou pushed upwards, reaching for the abatis and pulling himself forward. The grey flanks of the wall stretched high above him. The only way in was through this six metre wide breach the guns had blasted, and the sliver of red sky he could see through it was a beacon to him.
This was taking too damn long! Already the human Chaos soldiery were clambering over the lip of the rocks below and he hadn't even fought his way into the mouth of the breach yet. Honsou gripped the rusted girders of the abatis in both hands, roaring as he ripped them from their position, sending them tumbling to the base of the breach, crushing half a dozen soldiers as they fell.
Another Iron Warrior climbed up to join him and the two of them went forwards, firing their bolt pistols as they climbed. Through the dust and smoke, Honsou could see shadowy forms at the jagged top of the breach and could hear screaming voices yelling him onwards. He shot into the smoke, hearing screams of pain as his bolts hit home.
He pushed forwards, gripping the stonework as the slope grew steeper. A shot punched into his breastplate, another grazed his head. Shots filled the air, flashes of las-fire vaporising the smoke as they slashed past him. The one remaining tower at the head of the bastion sprayed bullets across the breach, kicking up spurts of rock dust while grenades wreathed them in ringing detonations and spinning fragments. The warrior beside him fell, his helmet a molten ruin, but Honsou pushed on through it all, oblivious to the screams of dying men around him and the battle cries of the hundreds of soldiers that now clambered up the rocky slopes behind him.