The most vulnerable mega nest. Pretty much just a crater with bug holes burrowed in a ring around around the edges. Few fortifications other than the various dugouts and a wall which runs part way down the middle to guard a few elite bug holes.
Visually-
A few bones around the perimeter, less walls compared to other mega nests.
On the Map-
Circular shape, small discolored pit in the middle (looks like water, but isn't acutally).
Hole count: 10
Elite bug holes look like the holes found in Stalker Lairs and spawn either Alpha Commanders or Bile Spewers on Bile Spewer constellation maps.
https://youtu.be/vK_gIPUXPqk?t=80
I take advantage of the larger model of elite bug holes to destroy several with a walking barrage. I then throw a 380 a little to the left of the specific bone shown in the video to remove several holes near the center. Next I throw a 500kg on one hole in particular because it is elevated and difficult to take out with explosive weapons. I eruptor one straggler, and destroy the remaining holes in the walled in portion via my last 500kg.