This is a story about the Freelancer project in the rvb that was part of many dark deeds. Only some people were suspected about the project. So the UNSC chain of command has sent legendary Spartan II super soldier who is (y/n)-147 and member of blue team to investigate the project undercover. RVB goes to rooster teeth and halo goes to 343.

They called him a traitor, He killed more then any. Command wanted him in chains, he broke them, He had trained for this since he could walk, now was the time to show who was the real alpha spartan. Some say he could challenge the chief, but saying it to his face would mean a challenge, he would not lose that challenge. No one escapes his sights, his enemies feel the bullets but none live to look at the carnage. His name? No one knows, his only identities are his spartan number 727 ,and his call sign...... Ghost

A young girl left alone with her mother attempting to escape the Covenant's ethnic cleaning was unfortunately separated by the ties of life and death. In an act of mercy, a Sangheili scientist had adopted the young child to study humans further but took a turn in strengthening a bond. The young girl grew up with the skin of a human but the soul of a Sangheili warrior but it'll will be tested as her capture in the UNSC to determine who she really is. Who is the little girl? (Y/n), daughter of Xiha'Tanam or (Y/n), protector of mankind. (I only own the characters that I created. I don't own you or the Halo plot or characters. I try to keep the story as close as possible with my own small details. Please do avoid stealing my ideas because I will find you and sever your arms like a Jiralhanae.... have fun reading the story and if you want to BORROW my details then you have to ASK FIRST or if you have ideas about how to continue the storyline then PM me so nobody else will know.)

The real defenders of humanity are the legendary Spartans that fought during the human covenant war and now a new battle awaits for 2 Spartans as these are known as the last few spartan IIs. For they will be in a world unlike any other but facing a great many threats. Now it'll be up to them to do what they do best and defend humanity. For its their job to prove the impossible possible.