OKAY HERE'S THE SUMMARY @Dragon_Ben @AlpineFalcon76
The Last Regiment(LR) forms after the Human Covenant war ends in 2553. In 2555 they augment humans to become the Spartan Foxtrots. Around 50 are made, and split into teams with multiple species in them. They are rallied over Titanus, the LR's stronghold planet, to be lead by Sky 5839. Sky and the rest of Fireteam Daylight are ordered to go to Rak Tann to assist against the Storm Covenant forces who wish to enact revenge against the local Brutes for committing genocide on the Elites. Daylight is deployed, and shortly Sky is forced to execute Spartan Sane in the field. She also meets Catina, a UNSC deserter, who sides with them. Tizakanus, their leader, accepts the LR's help and makes an alliance. He demands his son Irzon be placed on Daylight, to which Jasper, the LR's leader, accepts. But as the battle for Rak Tann comes to a close, Daylight is faced with a deadly Elite General who has killed dozens of Spartans in the War, Rhak Leree. After forcing him to retreat, the battle seems to be won. That is when the United Nations Space Command, UNSC, shows up. The Last Regiment barely fights off the threat, securing Rak Tann.
After Rak Tann, Jasper orders Daylight to assist in reclaiming Shepard, a system with rich Tungsten deposits. A group of Elites lead by Favlo Borli, seeking redemption to the Covenant, control the desert moon. Sky leads her team to the surface as well as Jasper, who had history with Favlo as enemies. Sky breaks through the defenses and kills Favlo, not before he wounds Jasper. Then, the Storm Covenant and UNSC send strike forces into the system. Rhak Leree returns to fight Daylight, taking them on as Fleet Admiral Greg of the UNSC's Office of Naval Intelligence(ONI), begins a fight with Daylight. Rhak's forces went unnoticed until they began attacking the two, the three way fight just beginning. Grace is stabbed, causing Sky and Spartan Raptor to enter a fit of rage. Chiq, a Jackal, brings them back to the Short Straw. The UNSC retreated with Thomas, an Orbital Drop Shock Trooper(ODST), defecting to them.
The Storm Covenant remains, and Daylight is given their recovery mission, breaking into an old base within the glassed planet. They enter to find the body of Hector Gallegos, the LR's leader during the war, when the LR was known as Foxtrot Command. Sky learns a little about Foxtrot Command(which everyone barely knows about.). Eventually a Covenant Kraken attacks them, which is a flying siege tower with dozens of guns on it. After that, Chiq flies them back to their ship. On their ship, Sky gets mad at Grace and Raptor, and then falls in love with Spartan Winter, and the mission ends.
Then, we are deployed to defend Titanus from attacking Covenant forces. The Storm arrived because they were tipped off by Fleet Admiral Greg(FAG). Fleet Admiral Greg stealthily watches the fight unfold as the Covenant goes to the surface. Daylight covers the evacuation. During this, Sky and Grace have a falling out about how she and Raptor like each other. They retreat further into the city, to find Fireteam Gorgon's last member, Spartan Bridget. Spartan is ordered to hold her and escort her to safety with them. Spartan Leo's gf, Ana, defects to the UNSC in the midst of combat. FAG deploys his forces, sending a team to attack Daylight. They do so and fail. Nos Leygall, the team's Elite(all are aholes btw), defects as well to challenge UNSC Spartan Nicolas, for he stole his kill on Rak Tann(this continues for 5000 posts...). Daylight finds a way out, drops Bridget off to get medical attention and continues the battle in space.
Admiral Jasper's ship is blown up and he escapes to be captured by FAG, who takes him and Leygall to be held on Earth. Butch and Celosia, two agents for the LR, break them out and bring them back to Titanus.
Back on Titanus, Daylight is sent to board the flagship for the assaulting Covenant fleet. They manage to kill Rhak Leree, and Raptor claims his Elder Sword. They leave and then FAG unleashes an ancient alien parasite called the Flood to Titanus' moon, using them as a bioweapon. On the moon a Covenant base is all that remains, shortly turning into a hive for the Flood. Then Daylight is deployed. Cabis Vul and several others are afraid, leaving half of Daylight behind to face the threat, armed with a nuke. Grace stays, continuing with Raptor's support. Her history spooks her from the Flood. Sky leads her team into the base, unbeknownst to her, they are being followed by Fireteam Blacklight, some UNSC Spartans that intended to kill Daylight. They set aside their differences temporarily to plant the nuke in the caves below. Then Sky straps Thomas, Blacklight's leader, to the nuke, and Daylight escapes. Eventually so does Daylight. The Flood is stopped, and Daylight takes leave on Regal, a snow planet. Sky shows the team what a real snowball fight is, and has the most brutal fight yet. It all ends with hot cocoa.
Soon after, Chiq goes missing. Sky brings Daylight to find Chiq, tracking her to Eayn. Eayn is a Jackal pirate central, controlled by the tyrannical Zheth Roc. Daylight lands, and immediately a fight starts between Grace and Sky. Zheth interrupts, and captures them. Half of them escape. Then a prison breakout is planned by the escaped half. The captured half find out that Sky hasn't actually been Sky since Shepard's moon. The imposter was Aries, who was switched out with Sky by her brother Rick, who tortured Sky when she was in captivity. The real Sky takes flak from the team for her harsh actions, and knows nothing about them. They then break out, with the help of the escaped members. Cabis punches the real Sky, and in her weakened state she is sent into critical condition. Daylight rushes back to Titanus and Chiq takes over Eayn, leaving us. Lobster takes Bridget to the Soaring Dragon, and he lets her stay there because the LR hates her.
Then the next battle of Titanus happens
An insurrection group discovers the LR is building a superweapon, and deploys forces to it, while tipping off the Covenant and the UNSC. The two factions are drawn to Titanus to stop it, and end up fighting each other. This allows the Insurrection to slip by the LR defenses and invade the Dark Star III, a colossal ship that could wipe out an entire fleet within minutes. The Insurrection, with little numbers, secure the bridge and turn the point defense cannons on the local LR defenders. Fireteam Daylight is first deployed to stop the Insurrection, when they come across Rick and Aries, Sky's torturer and imposter respectively. They mutilate him and continue on, yet Spartans Catina and Santiago chase Aries down to Titanus' moon.
The Banished, a group of Brute warriors that rebelled against the Covenant during the war, set their sights on the Dark Star as well. This did not faze Daylight, as Tizakanus took on their leader. Finally securing the bridge, Winter leaves to do his own thing on the ship. Sky grows concerned.
On Titanus' moon, the Flood returns, even more vile and powerful than before. Cat and Santiago fight them off, but Cat defects to be with Aries. The two steal a Condor, a small human ship capable of lightspeed plot device travel, going to the Soaring Dragon by accident.
Daylight, after hearing about Santiago, rush to his aid on the moon, Tizakanus staying to l guard the Dark Star from Covenant attackers. With the growing Flood infection, Jasper has forces pull back from the moon in favor of leaving the Covenant to turn it to glass with their plasma projectors, a technique seen countless times in the Human Covenant War. But Daylight has to save Santiago before they arrive. They venture into a local city, using similar tactics to the last flood encounter, leaving those who were too scared behind at the ships, while those unfazed continue into the hellscape. They encounter Fireteam Blacklight, which Ana had been transferred to. She returns to the LR in the middle if battle. Jess, Winter's sister, is discovered to be on the team, and defects as well. This left Thomas and a few others.
Finally, Daylight saves Santiago and a girl named Victoria, who is shortly offered to become a part of the next generation of Spartan Foxtrots.
The team leaves to get to their ship, and is shortly redeployed to the Dark Star as the Covenant fleet begins to move toward Titanus after glassing the moon. Daylight secures the primary thrusters, allowing the ship to turn and annihilate the fleet. Daylight goes back to their ship after a long day.
Elsewhere, Aries and Catina are captured by Lobster and Bridget, but Bridget allows them to escape. She feels horrible about this afterward. The two are attacked again and bring the prisoners to the LR.
Aries and Catina go to Aries' secret "refueling station" called Highland Station, Grace's old home before it was destroyed. Human Covenant war veterans who never saw the Covenant beaten live there, manipulated by Aries to do her bidding. Their leader Sam sends them on a mission to find the Dark Star II, and they leave for Requiem, an ancient alien world built by the Forerunners. They arrive to be trapped on the surface of Requiem by a large Covenant force, and discover Midnight of Underlying Contempt, an ancient A.I. locked within a God's Leash, a tether for Promethean(ancient alien robots) forces. Midnight sides with the ones who freed her, and takes them to a safe place on Requiem.
Cabis Vul defects to the Covenant and takes on an apprentice at the request of the Covenant supreme leader Jul Mdama, Damo Borli. Soon after, Favlo Borli, who still lives but doesn't want to see his family lest he push them into dishonor, employs Nos Leygall to bring Damo out of the Covenant. Nos accepts and journeys to Requiem.
The LR discovers a UNSC ship known as Infinity is going to leave soon, and sends Jasper, Fireteam Daylight, and a thousand others to stow away on it. The Infinity is headed to Requiem.
So here we are, doing that.