I've gotten to the part...
Haven is attacked after I closed the breach
And I'm Just wondering how far along the main quest I currently am (Hopefully lots more to do because I'm taking my time and really enjoying it!) but I'm going to need to organise some free time to play at this rate.![]()
You're maybe 20% of the way through the main story.
Also, with regards to Mantle. It was killing my fps and making things stuttery, switching to DX11 solved my problems.