Halo 5, level 2 secret with Blaze of Glory

Ok so I am in need of some help, I found a possible secret that I simply cannot solve. So on Halo 5, campaign, mission “Blue Team” before you get to the hunter there is a special shotgun “Blaze of Glory.” If help onto til near the end of the mission (when you go into the open hanger where you can fly banshees around) there are little black skull looking objects that when pointed at with the Blaze of Glory light up and “twinkle.” I can’t figure out where to go from here, I’ve found a little pattern but that’s about it. Anyone willing to help can message me @ Gopherlad or know what it does, I was just curious. Thanks!

Try combining this with the “banshee squad” ‘Easter egg’ at the beginning. The squad come out of the area where you pick up the Blaze of Glory.

nice find, ive been looking for the weapon to try activate this skull, might activate something nearby

All of the black skulls light up when you are next to them but they spawn enemies if you are holding certain weapons near particular skulls. Unfortunately, the blaze of glory does not activate the fourth skull.