OK, lets get started. Humans start receiving weird radio signals from Neptune and we just think its Vex chatter. But why would they be on Neptune? We go there to explore, we find nothing, and just ignore the signals. After a while though, the signals change. We start receiving warnings in English. We have no idea who it is. Then, the Hive suddenly attacks Neptune with a full force. They leave a massive crater there and leave Neptune. The Hive suddenly unveils a massive star ship, about 14x bigger than Oryx's star ship. Ok, now it gets CRAZY. With some technology they have, they PULL THE MOON THALASSA OUT OF NEPTUNE'S ORBIT AND LAUNCH IT AT FULL SPEED INTO THE SUN. At that point we think that the Hive got some mental issues or something. Thalassa evaporates before it actually touches the sun. The Hive bombard Neptune again. We get stronger signals now, in English. This species tells us the story of how only they can destroy the Hive once and for all and how they were the last recipients of the Traveler. They have technology superior to ours, but the are in the Light. Not the Dark. These beings are only spiritual though, and the tell us how they've been searching for the Traveler and the Darkness for eons. They come down to Earth and communicate with us. They then go down to the Amazon Jungle and build some sort of beacon. At least, that is what they told us. At first, they destroy the massive Hive Star ship. Though, when we try to get a better look at the beacon, they threaten us. So, when we send Guardians in there secretly, and our Ghosts find out that after they destroy the Hive, they point the weapon at full power towards the Tower, in hopes of getting the Traveler back. We take out the Beacon and stop them from completely wiping us off the Earth. Now kids, this is where things get insane. They send their Entire fleet from their planet towards Earth to attack us. Their ships aren't actually mechanically controlled, they control it with their own living force. Their spirit, which is all they are. Oh, and they also come in Robotic suits as well as ground troopers. The only way to wipe them out is by actually destroying almost all their ships and robots. Every time we destroy one of their ships, they just take control of another one Spiritually and continue attacking us. OK, now it gets spastic. The Hive start HELPING US AGAINST THESE BEINGS. Well, not helping, just killing those beings. The Hive only fear those Beings, so they need to take them out to survive even with their dwindling resources. They take out most of them, until the Beings move to Neptune. Then we have patrol there, a few missions, a strike or two and maybe a raid. The "boss" idea is their leader who is the only physical being in their race. Sorry for making you read all of that, just an idea.