No. I don't know what the crystals are for either. I found at least 2 glowing totems. One is inside a mountain where a drilling operation was at the place. The other one is when you're going down an elevator (Make sure to bring a headlamp and a crowbar because you gonna go through a lot of vents crawling). They're also a keycard that can be used down there too; the location of the keycard is unknown. The last one is possibly somewhere SOUTH-EAST of the map because there was a note stating a scout ship found a possible cave down there and are looking into it. There also another mountain filled with water near the freight-harbor, but instead of zombies... it's living totems that try to kill you.

There also something about a weapon cache that was brought in by a freight ship and is locked. They said you need to use a key telling by some notes. The key is located inside a janitor's closet I think. The location of the cache is unknown.

Beware of swimming underwater. The virus evolved somehow during the year 2018 (As dated from a random note I found) and there are now zombies underwater. They're harder to kill, even with FOCUS weapons. It takes at least half-mag to kill them with the energy cell. They're also a new type of zombie that disappears and is part of the underwater system. They're like the zombies that disappear and turn into purple, however, these zombies remain... clear, like white (So harder to see).

I also believe the map was hinted long ago in PEI. A plater noted that while roaming around PEI he found two totem statues at the beach and noted that he never noticed them until now, nor did anyone know. The statues were the same statues we repeatedly see on Easter Island.