Blender to UE4 Animation Workflow: Part 3 - Export UE4 Scenes to Blender
Edit: When I was mentioning about things getting less accurate the further away from zero point, I meant in the transition from Blender to UE4 and not just in Blender. For example, my Samus video had things line up super well at the beginning but as things went on, the animations began slipping around and needed small adjustments in UE4. Not sure if I just exported something wrong at the time but it happens.
Environment still matched perfectly with this technique though.