Halo Wars 2 keeps restarting first mission

I'm Samy an independent advisor. Welcome to the Xbox community. How are you?

These steps can help you, give it a try.

Check for updates on Windows Update, update everything including optional/additional updates.

1. Logout from Xbox app and Microsoft Store app

2. Look for the Xbox app and Microsoft Store app in the Windows menu, right-click, click app settings and then click terminate, restore and reset. Do this with the game too.

3. Clear the store cache type ''wsreset'' in the Windows bar, run as admin, and wait for the screen to close and open the store automatically.

4. Open the Microsoft Store app, library>get updates and update everything.

5. Press the Windows Button then type Services.

Right-click over the Services App from the list of results.

Then select Run as Administrator

Scroll to the bottom and find the following services:

IP Helper

Xbox Live Auth Manager,

Xbox Live Game Save,

Xbox Live Networking Service,

Gaming Services.

Do this with each of the services listed above.

Right-click over the service and select Properties.

Find the Startup type section and make sure it’s set to Automatic.

If the service isn’t started, click Start to start the services.

Click Apply and OK to save changes.

6. Restart your PC, log in to both apps and see if that solves the problem.

Also tried to restart still crashes, all drivers up to date, still crashes

Try to restart the PC.

I've already attempted a restart, made sure to restart PC when i updated my driver's as well

this has been happening since jan 15th 2020 on windows 10 they have stated that they are aware of the issue you arent the only one having this problem. i am as well as others. Guess we will just have to wait patiently...

anytime you have have selected units make an action the game will crash with no error

Can’t actually help you, but this happened to me some years ago, when they first introduced cross platform for halo wars 2.

For me it was impossible (it occurred the same problem as you) playing online: whatever match it was. It was ok with the campaign, and after a bit of troubleshooting i remember coming to a conclusion: the problem was playing with people on xbox. If i was
playing with other pcs it was ok. If i was playing alone it was ok.

I could not find a specific solution, but i doubt there is one: by now you would have easily found that searching on the internet, cause it is a really big problem.