From Halopedia, the Halo wiki
The additional skulls in H2A aren't PC exclusive. They've been there since MCC released.
My bad on the Created conflict edit. Thanks for fixing it. I owe you one!
I agree that the master chief will be in a new halo game other than that I have no idea
I don't mean to be rude or offensive in any way, however I must ask: Is English your first language? Because it seems as though you are using an online translator to write your edits, and to be honest it isn't working. Your grammar and general writing structure are simply atrocious. Please put more effort into either your writing or translating before trying to contribute more edits.