I saw the end of the world/Danger room quest [Avengers semi-official quest ] (open)

[The Vision]

"(1) more participant detected. Adjusting second stage..."

The voice paused, replaced by quiet high-pitched clicking. It spoke again after a minute.

"Complete. Simulation category: defend stronghold. Please stand near a wall."

Marcus and Blair warily stepped a few steps back, pressing their backs against a nearby wall.

The walls tessellated away. Dizzyingly enough, the duo from the future very suddenly couldn't feel the wall behind them. Unbeknownst to them, the walls they were on had gently given way and put them in a supine position. Though the simulation would still feel real, they would simply be in a state of dreaming.

The setting reconstructed into an area larger than the Danger Room had been before. Four low barricades made of wood scrap and rusted steel were laid out in the outline of a vague square-ish shape. Inside the outline was a small pile of crates with the Avengers A printed on each one. The ground was a wasteland gray, flattened as if the earth was alive but exhausted.

A bright yellow square wrapped around the barricades. A humanoid figure with a digital appearance and a red outline appeared right next to it. Its foot was hovering just above the edge of the square, frozen in time. The crates were outlined green.

"Prevent all hostile entities from entering selected area. Minimize damage to payload."

The colors all vanished, along with the image of the humanoid. In the distance, a far greater distance than should be possible indoors, a swarm of red dots scattered into reality.

"63 hostiles detected. 62 humanoid Terminator units, 2 Chitauri Leviathans."

Two pictures appeared on an invisible screen, one projecting the Terminator, another a giant flying armored space worm.

"Augmentation: Quinjet, supplied. Ground support, supplied."

At those words, the Danger Room created a heavily armed copy of the Quinjet and two digital men on each side of Marcus. A series of weapons lined up on one of the barricades.

"Simulation deemed complete when all hostiles are eliminated or three minutes have passed. Simulation begins in T minus 80 seconds."

You are facing 62 Series Six Terminators and two of those worms that Hulk punched out in the Avengers movie. You have two autonomous copies of Marcus, sans his appearance. They hold whatever weapons you choose. Go crazy.

The Quinjet is a stealth plane with propellers in each wing so it can hover in mid-air. It has a minigun tucked on each side of the body above the wings, or the plane's "shoulders", so to speak. Also there's a rocket launcher with six RPGs loaded on the underbelly. These weapons and the plane can be destroyed.

Good luck.