Mythic Skulls

Everyone knows about the "Mythic Skull" on Cortana, but now everyone knows about the hidden skulls on each map in the Mythic Map Pack. These skulls have achievements, these achievements have icons which tell us something about the map.


Here we see the Assembly Skull icon. Its like a circle with some snakes on it. This, of course, relates to the map, Assembly, itself. That is the snakes in the center refers to the large tower in the center of Assembly (Any ideas about the hidden skull being on that tower?) and the circle refers to the fact that Assembly is circular.


Here we see the Citadel Skull icon. I'm not exactly sure how to comprehend the thing, but it does mean something. Possibly two hills and a cactus? Otherwise it is just two curves and a line...

As for the rest, I don't understand exactly, but I'll post their images.


Heretic Skull



Longshore Skull - we can see a camping tent and perhaps a fish jumping out of the water. Examine closely - you may be surprised.



Orbital Skull


Sandbox Skull - You can clearly see a monitor making me think competitive forge games will be in matchmaking soon. Notice the "Tank Dropper" achievement where you kill an opponent in forge.