I'm trying to model a helmet using subsurface modifier, there is a section where the corners are projecting causing a bevel. I have mean crease the entire border section which didn't help. And also tried some perimeter around the mesh to see if that would make the corners more square but its ruining the topology. If I start adding more loops ( vertical & Horizontally) again its deforming the shape of the helmet. How can I get the corners more like the reference image?
I've also included the Blend file.