Percy Jackson: Spartan of Chaos

Intro

My name was Percy Jackson, but that was a long long time ago. Now my name is Omega a Spartan of the CASC (Chaos Army Space Corp.) and I am the leader of Alpa Six, also known as Alpa Team. You may be wondering how I got why I leave my wonderful life and girlfriend on earth. We'll let me tell you.
FLASHBACK
So it all started when I heard the most high pitch scream imaginable from half blood hill. I went up to go check on it a kid around my age was running from wait what a baby hellhound, wow that's disappointing so I went up to it gave a quick slash and the fight was over I went over to help the kid up
"Hey what your name."I said as I held my hand out he took it but when he got up he elbowed me in the gut and took my sword as everyone was coming up the hill
He yelled "Killed an army of monster will this coward hid!"
'Ok now that bullshit nobody would believe that' I thought. People started cheering.
Soon Chiron trotted up and asked "what is your name young hero?"
He soon replied "Adam Hammond"
Just to make things worse my father appeared from sea green mist and disowned me and proclaimed
Adam as his favored son. WHAT THE FUCK JUST HAPPENED !?!????!?!!!!!!!
I lasted a week then the friend I was close with started to leave because they thought I lied cheated and stole from the which was really Adam who was framing me. The only friend I had were Nico, Thalia, And Annabeth
But that changed quickly I finally got permission from Athena to marry her I made the ring my self green and grey stones with a silver band with engraved
"Wise girl and seaweed brain to Tartarus and back."
I told Annabeth to meet at the beach

I was running around with excitement to propose so I went to the beach early to find a couple making out on top was a blonde with princess curls and on the bottom was Adam I got a little closer to see who the girl was and It was no other than Annabeth the girl I was going to propose to the girl I fell into Tartarus with the girl I loved.

I stood there shocked for I don't know how long till I finally snapped back into reality and I yelled" Annabeth how could you I fell into Tartarus for you, I was going to propose to you!" Quietly I whispers "how could you "
I threw the ring on the ground and ran back to my cabin to pack my bag with food water and ambrosia and wrote a note.

To anyone who care
I have finally had enough betrayal for anyone who did not betray me thank you Nico,

Thank for not leaving my side although you may have been in the under most of the time.you will always be my little brother no matter what.

Hey Thals.

I know How pissed off your going to be when you get this but please dont kill anyone (Sratch that, fuck Adam up please) you may be in the hunt and hate male and all that but you were my sister always.

Goodbye,
           Percy Jackson
I left Riptide on the bed went to the armory go a new sword that was closed to balanced And I ran as fast as I could to Thalia Pine tree, said goodbye to Peleus and left forever or so I thought

Again this is my first story so any help would be amazing hope you enjoy