neat design, nice innovation, though seems over-engineering a simple task. Would not be functional in the field for my needs.
It's a triangle wire hammock dependent on stakes in the dirt for vertical lift support and horizontal tension. if you need a stone to pound the stakes in, you might as well get a few stones and lay down a flat rectangular rail grill. weighs less. Gravity works.
I would not want to take a chance on my food or hot liquid kettle tipping, when (not if) one of the stakes fails either due to temp change or loose soil or the vibration from the percolating boiling hot water.
If I was fishing and had to grill a fish, I'd impale with a branch, and roast it on an open fire like a marshmellow.
The better reason for a grill is heavy steak or tea kettle, this grill can't hold weight reliably.
For a soldier trying to lighten up, he is adding unnecessary weight.
Though the design and shapes are really cool. Form is not following function.