He had the ground stakes for this set up, they looked like large tent stakes, also olive drab green. They were too small though, would pull up/out for sure.
No, the “ground stakes” you need for those are basically a short piece of pipe that looks like the pipes you have, that are hinged , on side of the hinge is a large spike that goes to the ground.
now it could be one of the tension camo set ups where the weight and tension of the netting keeps it from moving