A/N - Bungie owns Halo. As much as I want to, I don't. Again, this is strictly AU. The first arc will be a blitz of action, then it'll settle down into a story. Blame me for writing this on a whim.

You have you admit that the most famous aspect of Halo is the gameplay. The fighting and all that. I decided to write this after wanting to write a Halo FanFic, seeing deleted material for vehicles and deciding that the Forerunner stuff wasn't my cup of tea (For now). So I decided to make a war between humans and humans with the stars being Spartans (Mainly). Anyways, I hope you enjoy it.

The two wheels of the Grackle landed on the dirt with a thud. It skidded to the side for a few moments before the rider corrected it's path. Up ahead lay a large battlefront... There was a large explosion and dirt erupted about fourty metres away. MJOLNIR Power Armour hit against MJOLNIR Power Armour and a Spartan was hit out of the way, his energy shield depleted. The rider's grim determination was hidden behind the gold visor. The NavPoint was lit up on his Heads-Up-Display as he approached. Heavier fire from a Pelican rocked the fight for a while before a red beam shot out from a small fortification and killed the pilot. It swerved precariously towards the ground and well-placed rockets smashed the wings. It corkscrewed and flattened several Spartans and a Warthog rolled out of the flaming wreck. A fragmentational grenade caught in the Grackle's back wheel for a moment but an angry kick sent it clattering to the ground where it exploded and killed a Spartan. Dirt flew as the rider hit the brakes at the motorcycle skidded into a small seciton barricaded by upturned Warthogs and a Scorpion tank.

"You did well." A Spartan with well-worn armour congratulated the driver and clapped him on the back as he jumped off the bike.

"We're losing." The fighter replied bluntly as he read the data on his HUD. His captain laughed sadly for a few moments before he turned to face him, his face set with determination and anger.

"We're going to kill every last one of them." He growled. "SPARTAN Thomas-274, if we don't..." He stopped and ripped a combat knife out of Thomas' CQB Armour and held it to his own neck. "We're all dead anyway." And with that he threw it at Thomas who caught it and slipped it back into his armour. There was a small armory made in the centre of the team's base, a crude pile of weaponsThomas crouched down and picked out a pistol which he snapped to his waist. He slung a battle rifle onto his back and picked up a SMG. A pack of six frags was clipped onto his thigh and he loaded his belt with them. A crude second-person seating had been added onto the front of his Grackle and an EOD Spartan was positioning himself onto it, lying on his front. He held a Spartan Laser, had a rocket launcher on his back and a combat knife on his thighs. The bike had been set up as so that the positioning of the front wheel would change the position of the riding Spartan and therefore his firing range. The front wheel had an annoying swivel to the left but Thomas disregarded that and mounted his bike.

"I'm Three-Oh-Nine." The EOD Spartan said as Thomas readied to exit the base. "Don't get me killed." He joked.

"Two-Seven-Four." Thomas replied slowly. Without another word Thomas shot out of the base and into the battle.

He sprayed a volley of shots at a group of ODST's converging onto a battered Mongoose with a crazy driver and as he approached them 309 headbutted one, Thomas let go of the bike and stabbed the knife from his chest into the neck of an ODST in a fluid motion and shot an ODST at close range with his SMG. He sniped the ODST 309 had headbutted with his magnum (The two were grappling now) and that left one. He had climbed onto the back of the Mongoose as was going to deliver the killing blow when a red beam fired out and shot the ODST's shoulder. The bike jostled and the back section exploded as the beam slid and the Spartan driver clattered onto the ground with the Mongoose bouncing off of him with an ominous spray of blood. Thomas dropped his magnum and reverted his attention to the bike.

There was a bad taste in his mounth - It had only been moments and he had killed a Spartan on his own side... Sure, he had killed a team of ODST, but...

The Fort, he thought. He had to destroy it. He ripped off the side of the canister at his tigh and threw the grenades, canister and all, at the metal shack that the opposition had been working from. Pins clattered down the aliminium shard that Thomas had ripped off as he dropped it and the explosion confirmed that they had hit their target. The Spartan Laser tore through the smoke and flames and the entire structure went up in flames. Noticing the ODST converging on the Grackle Thomas went for the SMG to hold them off.

His hands swiped air - He had dropped it as he went for the canister.

309 jumped off the bike and rolled. When he got up he was in a crouch with a rocket launcher in his hands. His Spartan Laser had been discarded and he fired the first rocket at the ODST, who simply split through the middle. The second was already three metres away when they noticed it and it was bound to hit home. Breathing heavily 309 stood up, the adrenaline rush wearing off. Thomas came over and clapped him on the back when he fell to the ground, dead. He had a clean wound in his chest. Thomas looked around and noticed the orange bubble around the ODST squad. A simple Sniper Rifle protruded from the shield and was able to shoot them. Thomas reached over his back for his Battle Rifle and he fired a few rounds at them, causing them to go back into the safety of the shield. According to the timer his HUD had set the bubble shield would be up for another 10 seconds. He readied to throw a frag when there was a second left when they all charged at him.

Thomas was under overwhelming fire for a few seconds before he hurled the grenade. His energy shield had taken severe damage and was under no condition to recover as Thomas took several shots, running around and trying to avoid the lines of fire. His grenade detonated and killed on of the ODST and destroyed the energy shield of one next to it. A short burst from Thomas' rifle was enough to kill him. Five ODST circled him with assault rifles in hand and a sixth with a sniper rifle.

In a quick action Thomas slid across the ground, whipped out a frag and it's pin and jumped up with it, wedging it into the pcoket of the belt of an ODST. A sniper shot killed another ODST instantly as the sniper missed Thomas head. Thomas jumped back and slapped his battle rifle into his free hand, holding it with both hands again as the ODST's charred body was thrown back from the explosion. He spun around and took a blind step when he hit something solid. He was penned in by Deployable Covers. A few grenades where thrown over the top of the covers and Thomas swore loudly as he stumbled around.

Thomas desperately punched a blue wall and there was a loud electric hiss and it changed to orange for a moment before reverting coloured. The other ODST had fled and...

309's rocket launcher was on the ground. Thomas dove to grab it and he fired it at a wall. He jumped up, throwing back the two-handed weapon and leaping out of the enclosure. He was blown foward by the explosion and landed painfully on his head. He rolled painfully a few times and blood splattered the bottom of his visor. His nose was bleeding and everywhere hurt. He lay on the ground, groaning. He absentmindedly crawled across the ground, led by instinct. He found a combat knife stuck in the neck of an ODST and gratefully ripped it out, sliding it into his chestplate - It fit perfectly. His shoulder paudrons worked in unison with his thoughts - Improved arm movement helped a lot as he crawled across the ground. Thomas found a magnum and a quick ammunition check showed it was almost full. Thomas groaned and turned around, one arm reaching for the biofoam injectors. He pressed the manual button and gasped as it entered his body.

A/N - Review please!