Marvel: Video Game Templates!

The cool breeze from the ocean swept over the city skyline as Maxim leaned back on a weathered wooden bench perched atop a secluded rooftop. After the attack on the Helicarrier, Maxim had parted with the Avengers temporarily, deciding to relax before the final part of his plans.

From this point on, he didn't need to change much. Loki's invasion will begin, he'll get involved, and after Natasha closes the portal, all he'd need to do was complete the easy swap. 

With such an easy road to victory, there was no need to stress himself. He reached into his pocket and pulled out a small flask, taking a measured sip of water.

He enjoyed this relaxing experience for a bit until suddenly, A.N.G.E.L's voice crackled to life in his ear with an urgent tone,

"Maxim, the invasion has begun. The portal is open."

Maxim sat up straight, the weight of her words snapping him to full alertness. "Of course it has," he muttered, already standing and moving to the edge of the rooftop.

He looked out toward the heart of the city, where a blinding beam of blue energy shot into the sky.

The swirling portal above it was growing, releasing the first wave of Chitauri soldiers on their sleek, gliding craft. The city's streets erupted into chaos as people screamed and scattered, seeking cover from the sudden onslaught.

Maxim's eyes narrowed. Shadows began to twist and curl around his feet, climbing up his body until he was cloaked in his Omen persona. His voice, now deeper and edged with otherworldly resonance, murmured, "Time to dance."

In a burst of shadow, Maxim vanished from the rooftop, reappearing in the heart of the chaos.

A Chitauri soldier was swooping in, his weapon trained as it readied itself to slaughter a women running with her child when suddenly, before it could react.

~BANG~BANG~BANG~

Three ( 3 ) ferocious demonic bullets pierced its body, two through its head, and one through its heart, and the Chitauri soldier fell to the ground dead instantly.

~SHRIEK~SHRIEK~

The loud shrieks of its allies immediately grated against Maxim's ears, and a barrage of bullets poured in. He made his body incorporeal, making him immune to them whilst he created a barrier around the Humans, protecting them.

Once he confirmed they were safe and sound, he turned back to the Chitauri, a smirk on his lips as he vanished from his spot, and in the next moment, over a dozen Chitauri soldiers fell around him.

Maxim tore through their formation, using Yamato, Ebony & Ivory to decimate the Chitauri relatively effortlessly. The streets were a battleground, but Maxim easily drew the most attention on this side of the city, dismantling his opponents.

~SLASH~

With a flick of his wrist, Maxim unleashed a single, precise slash, a wave of shimmering energy extended outward, cutting a trio of Chitauri gliders clean in half.

The crafts exploded in a blaze of fire and metal, their pilots screaming as they plummeted to the ground. Maxim immediately used his Demonic Flames to ignite them, turning their bodies to ash as he continued on.

He immediately vanished into a swirl of shadows, moving to protect more civilians. A group of Chitauri soldiers were currently advancing down a narrow street, their weapons raised as they herded fleeing civilians toward a dead end.

Maxim reappeared behind them, his presence announced only by the subtle distortion of the air as shadows coalesced around him.

The first soldier turned, its guttural snarl silenced as Maxim plunged Yamato through its chest, the blade slicing through armor and flesh with ease. He twisted the blade, creating a burst of dark energy that exploded out of the Chitauri's body, sending pieces of it flying all around in death.

Before the others could register what happened, Maxim dashed forward, his movements a blur of shadowy speed.

Two more fell to his blade in quick succession, their bodies dissolving into ash as Maxim imbued his strikes with demonic energy.

He caught a glimpse of a father clutching his child, huddled behind an overturned car. With a flick of his hand, Maxim summoned a barrier of astral energy around them, shielding them from stray blasts.

"Move! Now!" Maxim barked, his voice a deep, commanding growl. The father nodded and ran, clutching his child as the barrier dissipated behind her. Maxim turned back to the remaining soldiers, his smirk hidden beneath his dark mask.

One of the Chitauri charged at him with a massive, electrified spear. Maxim sidestepped effortlessly, letting the weapon pass through his incorporeal form before countering with a devastating upward slash that cut it in half, sending pieces of its body falling to the ground.

Maxim vanished and immediately reappeared next to another one, sending a powerful kick that sent the creature flying into a nearby wall, and before it could stand back up, a bullet from Ebony pierced its head, leaving it dead.

"This is too easy." Maxim chuckled.

~ROAARRRRR!~

Just as he thought that, high above in the sky, a Chitauri leviathan soared through the skyline, its massive form casting a shadow over the city. Maxim's eyes narrowed as he extended his hand, summoning a swirling orb of demonic energy.

With a grunt of effort, he hurled it toward the leviathan. The orb expanded as it traveled, morphing into a miniature black hole that swallowed debris, Chitauri soldiers, and even a portion of a building before slamming into the leviathan's side.

The creature shrieked as the black hole tore into its armor, leaving a gaping wound as it kept going, sucking anything and everything of the leviathan's body into it.

The injured Leviathan began to descend, its trajectory aimed dangerously close to a group of trapped civilians, currently hiding for their lives.

Maxim acted quickly, teleporting to the falling leviathan's path. With both hands, he summoned Sparda, the demon-forged sword and swung it downward in a devastating arc, splitting the leviathan in two before it could crash into the ground.

The Halves immediately fell into a portal that sent it tumbling to another dimension, leaving the civilians staring at Maxim in awe, before fleeing to safety as they saw more aliens approaching.

Soon, a squadron of Chitauri gliders descended, their weapons locked onto him. He raised his arms, summoning a swirling barrier of fire and ice that enveloped him.

The gliders' attacks were nullified as their projectiles melted or froze upon contact with the barrier. Maxim countered with a barrage of bullets from Ebony & Ivory, each one piercing the heads of the Chitauri soldiers and leaving them on a trip to the netherworld.

"More toys to break," he muttered, vanishing in a puff of smoke as he spotted another group of enemies.

He reappeared atop one of them, plunging Yamato into its head. The machine shuddered as sparks flew, its limbs flailing wildly before collapsing.

'Maxim jumped clear, landing gracefully amidst the soldiers. With a snap of his fingers, he created a gravitational well that pulled the Chitauri toward him. They struggled against the force, only to be met with a flurry of slashes from Yamato that cut them to pieces.

A particularly bold Chitauri lunged at him, only to find itself frozen mid-air. Maxim tilted his head, the eerie visage of Omen staring directly at the Chitauri.

With a wave of his hand, he sent the Chitauri flying backward into its comrades, the collision creating a chain reaction that left the group sprawled on the ground. Soon, a nebula formed beneath them, pulling the soldiers to the center before exploding, leaving all of them torn to pieces.

"Pathetic," Maxim said, his voice dripping with disdain.

As the last of the immediate threats fell, Maxim paused to survey the surroundings. The city was still in chaos, but his section of the battlefield was momentarily clear. He looked up at the swirling portal in the sky.

~SHRIEK~SHRIEK~

Just that moment, his extrasensory perception flared. The distinct, roaring sound of the alien leviathan approaching drew his attention, and Maxim knew it was time to group up.

~Other side of the City~

At the same time, Steve, Natasha, and Thor regrouped with Clint. As Steve was giving orders, the echo of a motorcycle engine occurred in their ears as they turned around, spotting Bruce pulling up and getting off, looking at the team.

"So...this all seems horrible." Bruce said as he spotted the devastation around him.

"I've seen worse." Natasha responded, bringing Bruce's attention to her.

Steve meanwhile, called in Bruce's arrival to Tony and soon enough, a giant Chitauri leviathan bent the corner, chipping off the side of a building as it followed Tony ferociously, crashing onto the road as it followed him.

"Dr. Banner. Now may be a really good time for you to get angry." Steve said as he noticed Bruce turning and walking to the leviathan.

Bruce glanced at the massive alien leviathan hurtling toward them, its maw wide and glowing ominously. A small smirk played on his lips as he replied, "That's my secret, Cap. I'm always angry."

In an instant, Bruce transformed into the Hulk, his roar echoing across the city as he swung his gigantic green fist as the monster, colliding with its armored hide and sending it careening off-course.

The massive creature's body began moving up into the air before it reached a peak, turning back downwards with a momentum that threatened to flatten all of the other Avengers.

Before it could, a shimmering purple barrier of astral energy manifested beneath it, halting its descent and sending it on a crash course off the road and to a much safer landing spot.

At the same time, smaller Astral barriers appeared around the team and civilians, protecting them from the fall out of the leviathan's crash landing.

The team looked up in surprise as Maxim's voice, cold and unearthly, rang out.

"Looks like you need me."

He emerged from the barrier itself, his shadowed form rising like a specter. The dark smoke surrounding him dissipated as he stepped forward, his glowing eyes fixed on the Chitauri still swarming around them.

Hulk roared again, and the various other Avengers readied their weapons one by one, gazing towards the Chitauri surrounding them ready to attack.

( Insert Avengers Music and Scene here! )

"Guys," Natasha said, bringing attention to a massive swarm of Chitauri pouring through the portal in the sky.

"Call it captain." Tony said, everyone turning to face the aliens.

"Alright listen up. Until we can close that portal our priority is containment. Barton, I want you on that roof, eyes on everything, call out patterns and strays. Stark, you got the perimeter. Anything gets more than three blocks out, you turn it back or you turn it to ash."

Hawkeye looked towards Tony, "Wanna give me a lift?"

"Right." Tony said, stepping forward and grabbing Clint before flying off.

Everyone's attention immediately returned to Steve who continued speaking, "Thor. You gotta try and bottleneck that portal. Slow 'em down. You got the lightning. Light the bastards up. You and me, we stay here on the ground. We keep the fighting here. Max, free-roam, any one of those things that move, make sure it doesn't...and Hulk."

Hulk's gaze turned towards Steve who raised up a finger and said,

"Smash!"

****************

Didn't want to bore yall to death with another filler chapter before the big Avengers moments, so lets go. 

Once this arc finishes, changes to the MCU Canon will be much more frequent. Certain things will stay the same, but don't read this expecting nothing to change.