Dominance Offensive

Super easy in MoP remix!
Just follow the questline, starting with Meet the Scout (Horde) / Meet the Scout (Alliance) which can be picked up in Vale of the Eternal Blossom at level 20.
If you get lost at any point, check for quests back at your faction hub in Krasarang Wilds.
I reached Exalted at about ~15-16 quests in. May be more or less for you but certainly will not take the entire questline!

Heads up for MOP Remix, if you are in Orgrimmar for part of the story quests of the Domination Point (Find Thrall! and The Horde is Family), finish the entire part there before heading back to Pandaria. You have no way of getting back to Orgrimmar due to MOP Remix restrictions. If you did abandon it, or hearthed back to Pandaria for some reason, and you want to complete the Landfall achievement, youll have to get your reputation up through dailies, which takes severely longer.

I asked a GM and there is no way for them to fix it unfortunately.

I did the whole quest chain which includes: Meet the Scout** A King Among Men** Lion's Landing** A Little Patience** The Best Around** To Catch A Spy** Stirred, Not Shaken** But I don't have any of the rep, and don't see where to go after the last quest (Stirred, Not Shaken)