Halos 3 ending (legendary)?

[XxSaosinxX]

i know this is quite old but stills leaves me wodering about the ending the planet in the end heres my opinion either the planet is Reach or a prequel to marathon but i definately think is Reach for some odd reason whats ur thoughts or theory...

 

[DON'T PANIC]

I think he just finished destroying 1 halo. There are still a few more. reach will probably be Master Chief destroying the last halos so the universe can live happily ever after