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).
Elite bug holes look like the holes found in Stalker Lairs and spawn either Alpha Commanders or Bile Spewers on Bile Spewer constellation maps.
I take advantage of the larger model of elite bug holes to destroy several with an Orbital Walking Barrage.
I then throw an Orbital 380mm HE Barrage a little to the left of the specific bone shown in the video to remove several holes near the center.
Next I throw an Eagle 500kg Bomb on one hole in particular because it is elevated and difficult to take out with explosive weapons.
I use the Eruptor against a straggler, and destroy the remaining holes in the walled in portion via my last Eagle 500kg Bomb.