Combination 1 part 3

We last left off as the mysterious hero introduced himself as chief and explained what the odd 'alien' things were to the demigod Annabeth. Chief then explained a small gadget called the drop shield and what it does. After killing a grunt about to kill Annabeth and Percy in the shield an elite appears behind chief..

Combination 1 part 3 of Percy Jackson series (1) and Halo

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Chief turned around as the elite attempted to stab his back. Chief then grabbed a plasma pistol and held the trigger till the bolt  was a big as possible. Chief fired it on the elite who staggered back. Chief threw the plasma pistol at the elite giving him time to physically attack. Chief moved swiftly as he assassinated the elite evading behind him. 
Chief: Thanks for the heads up.
  Annabeth: No problem but Percy is waking up finally.
Chief nodded and the bubble shield turned to a red pale and vanished.  A plasma pistol shot fired at Annabeth and she rolled out of the way as chief moved aside.
Chief: It isn't safe in the middle of a field with your monsters and the covenant. 
Annabeth: Okay.
Chief glanced around and saw a ghost and looked at Annabeth. 
Chief: Use the bubble shield again I found a ride. 
Annabeth nodded and chief ran off as the bubble shield sprang back up. Percy Stirred a little bit and moaned.
Percy: mmmmmm.......
Chief reached the ghost and leaped at the grunt driving and kicked him out, he turned at the grunt and ran him over. Chief drove back to Annabeth and Percy .
Chief: Get in!
Annabeth: We can't all ride that thing, it can't support us all
Chief: You two are riding out and I'm staying and killing the covenant. 
Annabeth: I can't drive this thing!
Chief: You will figure it out, its a lot like a mongoose. Now hurry up and get out of here.
Chief jumped out and Annabeth sat at the driving spot and chief put Percy behind her. 
Annabeth: Careful out there chief. I will be back as soon Percy can fight.  
Chief shook his head and flipped on the boost and they rode off as chief turned around just as a fuel rod blast passed chief by 30 feet. 
Chief: Good luck.. guys. He muttered as he grabbed his assault rifle on his back

TO BE CONTINUED.....