From Halopedia, the Halo wiki
Glassed is the third campaign level of Halo 5: Guardians.
Completing the level on any difficulty unlocks the "Glasslands" achievement, worth 10 Gamerscore points. Completing the level without any player using Smart-Link unlocks "Shoot from the Hip" achievement, worth 10 Gamerscore points, while completing it without entering any vehicle will unlock "Going the Distance", also worth 10 Gamerscore points.
Establishing shot: the UNSC Infinity.
Sarah Palmer enters and interrupts him.
Halsey interrupts him. Roland looks at her surprised.
Roland gestures at Halsey, who looks at him mournfully.
Fade to black.
Buck picks up and moves a briefcase.
Buck raises his pistol Whispered Truth and mimes shooting it.
Locke opens a machine that carries a gray disc suspended in anti-gravity. He takes it out of the machine.
Locke activates the disc, and it begins to spin, glow red, and whir.
Locke throws the device at Buck, and his armor locks in place. He struggles to move, as its shields flicker and its limbs become immobile.
Locke pulls the device off Buck's armor, letting him move again.
Buck looks at the device worriedly as Locke walks away.
Locke turns to face him as their Pelican rises up.
Locke looks back at him coldly.
He turns and walks away. Buck doesn't look reassured.
Fade to black.
Fireteam Osiris is assembled in the orbital elevator's cab. The cab has large windows, showing a low orbit view of Meridian.
The elevator passes through atmosphere. Meridian's surface can be seen now. Explosions burst in the sky. A few burning pieces of debris fly by while Phaetons are also seen crashing and flying.
A new comm tag appears on the player's HUD.
The door opens and Osiris steps out of the elevator. Locke approaches an armed settler.
If Osiris returns to the previous Settlers.
If Osiris approaches the console with the map of the station on it.
If the switch is pressed at the console with the map on it.
Osiris arrives at the entrance to the space elevator. It's shut tight, with many armed settlers guarding it. A faint battle can be heard outside.
If the player climbs to the top of the left security station, they reach the turret control room. Two miners inspect its locked door.
Locke smashes through the door. He presses a button inside, and turrets on the buildings open fire on the Prometheans.
If the player climbs to the top of the left security station, at the top they reach a catwalk with spare sniper rifles. The Spartans can see over the gate, and behind it is the door's power source, which is sparking slightly.
When shot, the generator explodes. The door to the courtyard slowly opens.
Osiris brings down the Knight Commander together.
If Osiris leaves with Prometheans still alive.
With all the enemies dead, the security lockdown deactivates.
If someone finds the heavy weapons cache.
If the player stalls.
When the player moves past the first gate.
The Spartans head down the road. Above them, a Pelican is attacked by a pursuing Phaeton.
Numerous warp gates open, teleporting Prometheans to attack the Spartans and miners.
If Osiris encounter a radio.
If the player shot the gate switch in the previous encounter.
The Spartans aid the settlers and kill all the Prometheans.
The bridge's gate opens.
If the player looks out over the glassed surface.
If the player stalls.
As the Spartans head across the bridge, they spot two Soldiers leap into an unoccupied Warthog, attacking them with it.
As Osiris heads on, they reach a valley with several garages. Several Knights are leading infantry to attack it.
As they fight the Prometheans.
Most of the Prometheans are destroyed.
When all the Prometheans are dead.
The Spartans enter the garage.
The Spartans climb into the Scorpion and drive up the hill. Some Crawlers and Focus Turrets appear to engage them.
If the player shot the gate switch in the security courtyard.
The Spartans continue driving up the Scorpion. A Phaeton attacks a mining ship overhead, and many infantry attack the gate to Meridian Station.
The Scorpion easily blasts away the infantry attacking. The area seems clear.
Warp portals begin to appear.
Several waves of Prometheans attack, bringing Knight, Soldiers, Soldier Captains, and many more Crawlers. The Scorpion fights them with the aid of miners at Gauss turrets nearby.
Several more waves arrive but are eventually destroyed.