I got halo wars 2 + season pass (after enjoying it) is the only way for me to buy this is by purchase the ultimate edition???
It looks that way for now. I was able to purchase the code off someone on Craigslist from someone who was selling the ultimate edition. I hope they sell it as a stand alone game on the Microsoft store for like $20
For now you need to purchase the Ultimate edition to get the remaster of Halo Wars, it will be released standalone later this year
343 announced literally 10 minutes ago that a standalone version of Halo Wars DE will be releasing this week.
> 2533274882881665;4:
> 343 announced literally 10 minutes ago that a standalone version of Halo Wars DE will be releasing this week.
>
> Announcement Trailer
Very cool, thanks for the info 
So happy about this. Halo wars 2 was my first and am addicted to it so looking forward to doing this aswell