From Halopedia, the Halo wiki
NORTH SPIRE, 0247 Hours
One of the drones spots some cloaking devices around the North Spire, but the drones suffer signal interference from it.
Upon switching to vis-feed 24 with high angle, O'Sullivan spots Banished Engineers on the site.
Five pods of ODST are deployed from the Spirit of Fire. The logos of 343 Industries and Creative Assembly appear.
Landing at the site, Vaughan's unit are ready to scout ahead.
Quinn raises the binoculars and the distance is around 1.8 miles to the destination ahead.
At distances of 1.2 miles, there is more Banished activity.
NORTH SPIRE/UNKNOWN BANISHED OPERATION
Disable the cloaking field to expose the Banished operation site.
Vaughan's ODST Troops are armed with EMP ordnance to neutralize Sentinels.
ODSTs start to roll out and shortly after their deployment, they spot a Controller Sentinel. Below the hills, a Banished unit engages it upon contact.
Advancing ahead, two squads of Banished infantry are attempting to flee from India Company Hellbringers that are pursuing them.
Trapping the Banished forces and defeating them, the Hellbringers rejoin Boomerang Company.
Advancing ahead, they encountered a Controller Sentinel pinning down Marines on a Garrison.
The unit unsuccessfully tries to attack it from the front instead of its exposed back.
While engaging the Sentinel, two Wolverines join in and attack it from behind, destroying it.
After regrouping, they start to advance again.
While continuing to advance, they find a teleporter and a Banished silo ahead. They destroy the silo while powering up the teleporter.
Reaching the device, the teleporter starts charging up.
While powering up the teleporter, a hologram projects a Jiralhanae Warlord giving a speech to the Banished.
At one of the sites, several Controller Sentinels are defending it.
One of the Control Towers controlled by the Banished can be seen.
A Controller Sentinel is approaching to attack the Hologram.
After destroying it, Sunray 1-1 waits for the teleporter to finish powering up.
After a while, the teleporter is activated.
When teleported down, they spot a Banished base and a Controller Sentinel engaging the Banished troops around the base.
While the Controller Sentinel destroys the Banished's base, Vaughan and India Company destroy it from behind.
While waiting for a Condor to deliver the base, Sunray 1-1 recon the area that has two Control Towers near their base site.
Once the base construction has been completed
They start capturing one of the Control Towers and once done, one of the sections starts to power up in blue color.
One of the Controller Sentinels starts heading towards the captured Control Tower.
Deploying the Holo-Decoy, the holograms distract the Controller Sentinel again while Sunray 1-1 and Wolverines destroy it from the rear.
A Jackrabbit goes to scout ahead and finds Skitterers ahead.
Assembling an army, Sunray 1-1 start advancing to capture Control Towers, while Jackrabbits go through Banished units and discover Banished bases northeast and southeast of their position. A Goliath is seen defending it and the Jackrabbits make a hasty retreat.
Near Control Tower B, the Banished are fighting Aggressor Sentinels and UNSC eliminates both of them.
Once Control Tower B is captured, a Controller Sentinel heads towards it.
Upon approaching the Banished base that was not scouted by Jackrabbits earlier, another Goliath is seen defending it.
When attacking the base, the UNSC also kills the Goliath defending it.
Upon destroying it, another projector appears and it displays the Warlord once again.
They then hear from an India Company Nightingale and a five-minute countdown is started.
The UNSC quickly regroups and goes to the isolated Nightingale. They spot a Controller Sentinel on the way and it remains stationary near the compound.
Upon reaching the Nightingale, some Banished infantry are engaging it.
The UNSC then defends Nightingale for a minute while a battle breaks out between Banished and Sentinels between Control Towers C and D.
Once the timer is up, the India Company Nightingale is moved to the player's command with bonus one rank veterancy.
After rescuing the Nightingale, the UNSC goes to the base that was scouted by the Jackrabbit earlier to destroy it before the Banished takes control of the Control Tower. Upon engaging, Colony finally makes an appearance.
Capturing another Control Tower after the Banished's base is destroyed, another Controller Sentinel approaches it.
The UNSC starts to capture another Control Tower while searching for Banished stragglers. Once captured, another Controller Sentinel approaches it.
After destroying the Sentinel, the UNSC discovers the India Wolverines that are held captive and frees them.
Advancing further, they spot another Controller Sentinel that was defending the cloaked area.
Once the last Control Tower is captured, the control terminal comes online and the last Controller Sentinel heads towards the last Control Tower.
Approaching the terminal, they start to talk.
Activating the terminal, the field is deactivated and a Retriever Sentinel appears on the light bridge behind it.
Sunray 1-1 starts fighting the Retriever Sentinel. When its health reaches 66% percent, the Sentinel calls in a Sentinel Swarm.
The UNSC quickly retreats outside the Sentinel Swarm's range and the Retriever starts being healed.
Some Aggressor Sentinels approaching the UNSC are destroyed immediately upon contact and the Sentinel Swarm disperses.
The battle resumes, and some Protector Sentinels assist the Retriever. When its health reaches 50%, the Retriever calls in another Swarm.
The UNSC retreats once the Sentinel Swarm arrives. The Aggressor Sentinels also engage Sunray 1-1.
If Sunray 1-1 approaches the Retriever with the Swarm active.
Sunray 1-1 quickly defeats the Aggressor Sentinels and the Swarm disperses again.
The battle resumes and some Protector Sentinels approach Sunray 1-1 but are quickly defeated. When the Retriever's health reaches 25%, the Sentinel calls in the final Swarm.
Sunray 1-1 retreats from its range once the Swarm arrives once again.
Once the Aggressors are destroyed, the Swarm disperses again and Sunray 1-1 continues engaging it.
Once the Retriever has been defeated, the Comms Officer can finally see inside the cloaking field.
Several squads of ODSTs, two Scorpion Tanks and a Warthog regroup at the terminal while Sunray 1-1 head to the light bridge.
A Hornet flies by while two Wolverines, a Cyclops and two Marines arrive on the scene.
Optional and Bonus Objectives