Malus had switched his radio to silent, and had lowered his signature HUD combat visor over his synthetic eyes, letting his HUD tell him what his comrades were saying, translating it from sound into words so that his position was not given away. The HUD visor had belonged to Malus for years, and it was still ahead of anything else that humanity had. This was because the origin of it's technology was not from mankind. A feral grin appeared on Malus's pale, battle-scarred face as he emerged from the muck of the sewer. He'd been under for about a minute, sure that whatever was in there would mask his pheremones and heat signature.
He was trained to be a sneaky bastard. He was trained well. He breathed silently, and the facemask he had put on made sure his breath didn't show. And kept the shit out of his mouth, which was always a plus. His M41S had been wrapped in water-proofed cloth before he had gone under, so it wouldn't be jammed. He knew how to look after his weapons. Years of war taught a soldier one thing. Look after your damned guns. And your feet. Malus knew all this shit would probably be giving him trench foot, but he didn't intend on spending days in the sewers. No fucking way. He moved slowly, making not a sound as he took a silent breath and submerged again. He'd heard the sounds of his comrades.
He was coming to help. This may actually turn out to be a bad thing, as Malus had a nasty habit of accidentally killing the very people he was attempting to save. In horrible, nasty messy ways. The Colonial Marine corpse that he had just bumped into was proof of this. A standard GI marine, looked like he'd been capped in the face by acid. Malus grinned. Who needed resupply when there were corpses to loot? Immediatly a gloved hand rummaged through the guy's webbing pouches, and Malus realized he'd lucked out. Type C Rations! He immediatly checked the waterproof seal on the chocolate and nodded in satisfaction. Good, they weren't shitstained. He pocketed them and moved on to take the man's ammo and grenades.
He then removed the bloke's leg armour and strapped it onto his arms. He had a feeling he would need the extra protection. The helmet wasn't worth keeping, it was acid-stained to hell. The man's boots, however, were Carmine's size. He immediately tied them together and slung them around his neck. Then he took what was left of the bloke's dogtags and moved off. Now that he had some gear, it was time to do that little bit of rescuing that he'd been intending on doing. He slipped back under the filthy water and silently made his way towards the signals on his motion tracker. Two groups of two. Harrows was in one of the groups, and so was Gene. Their vital signs weren't great, but they were alive.
Gene was in worse trouble, so rescuing her was the priority. Especially given the movement signature of her combatant meant it was an Alpha or something bigger. His weapon was loaded and cocked. As he rounded a corner he could feel the weakened acid blood slowly chewing at the exposed skin on his fingertips. Not enough to do any damage, but enough to be slightly uncomfortable to Malus's heightened senses. Yes. His enemy was here. "GET THE FUCK AWAY FROM MY TROOPER YOU MOTHERFUCKER!" He shouted as he burst from the water and in an instant took aim and fired his M41S Pulse Rifle.
Malus Jay Darkblade was the master of combat efficiency, and not a single bullet went to waste. He'd been practicing since Lost Souls. A lot. Malus was an obsessive kind of person. His obsession was being the strongest person alive. The most powerful creature in existence. And he was going to prove it right here, right now. There was no LED counter on his rifle, no way of telling how many bullets he had left. But he knew. He always knew. The Pulse Rifle was his soul. As he let a burst of ten bullets loose, the recoil taken easily by his trained hold of the weapon despite the rifle's lack of a stock, he growled like an animal. This was the life.
The bullets flew from the weapon at a speed faster than sound itself, and as he stood in the muck, water still flowing from his armoured form, the flash of the weapon lit the dark tunnel and added to the dramatic, sudden appearance. The first two bullets were headed for a hastily healed wound he had noticed on the larger Xenomorph's arm. The first bullet ripped clean into the wound, exploded, and sent a burst of acid spray into the filthy water. The second bullet hit the already weakened limb and exploded in turn with a dull, sooty roar. The creature's arm was separated from it's body, a grisly -crack- sounding through the tunnel, followed by a screech of pain as the monster was amputated.
Before the arm was even off, the third and fourth bullets had impacted with the base of the creature's tail, not in the armoured bones but in the relatively unarmoured joint between them, the tail's weak point. He didn't want to hit the tail near the tip or it could use it as an acid weapon. Better to take it near the base and give the fucker a useless stump. And that's what the fifth bullet did. The other two had already cut off the nerve endings and broken it's spine, paralyzing the tail entirely. The third one finished the job, and now the tail was hanging there by the slightest bit of exoskeleton, entirely useless and beyond any healing.
The remaining five bullets slammed into the creature's good arm. The first three hit at the shoulder and drilled straight through the bone to the joint. The last two hit the exact same point, drilling through the shoulder joint and given the angle of the shot, rammed into it's face. Into it's jaw, to be exact. The jaw fell into the water, and it's arm became dead and numb, unable to work.
"You think that you can come to our planet, impregnate our citizens, set up shop and then SLAUGHTER MY SOLDIERS? WRONG, FUCKER! NOW BURN!" As he said this, he racked the grenade launcher on his Pulse Rifle, and fired.
The incendiary grenade was a little-known M41A Pulse Rifle weapon. It burned, using white phosphorous. Banned by so many international human rights conventions, no such protection existed for Xenomorphs. Malus had nicked one from the Reaper as he'd jumped. Now the creature lit up, screeching in agony as the fire burned white-hot, slowly softening and melting it's hide.