[I may have gotten the sudden urge to write the file for the wall dweller predator of of nowhere, so take this!]
Z-910
Codename: Shifters
Z-910 is the designation for a species of creatures with the ability to shape-shift their appearance. It should be noted that each Z-910 specimen has a different preferred form that is written into their DNA. Further studies have shown that the form of the Z-910 specimen does have impacts on the behavior of the specimen. The preferred form of the Z-910 specimen acts as a base for the changes caused by the shape shifting to add onto. While Z-910 specimens can change their form fully, it is believed to exhaust the specimen faster than shifting of from it's base. Z-910 specimens all have carnivorous diets, with a notable preference for Z-90, which they are believed to be the natural predator of.
The three Z-910 specimens that are in containment are (at the time of writing) being held at Site ⬛⬛⬛, due to the ongoing containment breach in the Hadal Blacksite.
Z-910 was first discovered on October 25th, 1973, but it's theorized to have existed in some form since the time of the ancient Greeks. The first Z-910 specimen was not caught until October 1st, 2025, designated Z-910-P, with two more specimens being captured on October 4th and October 13th, designated as Z-910-S and Z-910-A respectively.
Z-910-P's preferred form is that of a quadrupedal fanged reptilian that bears striking resemblance to Z-907, with the difference being that it has large teeth-like spines along it's legs. Z-910-P was captured while attempting to defend a group of multiple young Z-910 specimens from an armed mobile task force squadron led by Captain Franklin S. Ward, who were completing an unrelated mission. Upon further investigation, the Z-910 children were found to have died from starvation multiple weeks prior. It is unknown if Z-910-P was aware of this or not. Z-910-P is believed to have a 'caretaker' form, with the role of protecting the young of other Z-910 specimens from danger.
Z-910-S has the preferred form of a theater comedy mask that constantly produces a flesh-like substance from the back of the mask, known as Z-910-S-2. Z-910-S also has the strongest known regeneration of any creature that has been in containment in the entirety of Urbanshade's history, as well as highly acidic, tar-like blood. Z-910-S was captured following multiple reports of inhuman crying coming from an apartment room in the city of Daytona, Florida. When Captain Ward and his squad breached the door to the room, they found it to be filled with Z-910-S-2, which had fully covered up Z-910-S. The M.o.S.A cleanup protocol was followed to reach Z-910-S, which was found inside an open space building a humanoid body. It is unknown what Z-910-S would have done with the body, as well as what function Z-910-S would have served in a society of Z-910 specimens. Further testing is needed.
Z-910-A has the preferred form of a small, spider-like arachnid with an exoskeleton made of human bone. Z-910-A is a brain parasite which, once it infects someone, will cause them to lose their emotions, positive and negative, as well as their sense of touch, effectively removing any sense of self. After an unknown amount of time, the infected will become murderous, seeking to kill all creatures (outside of Z-910 specimens) in a ⬛⬛ by ⬛⬛ stud radius. They will henceforth be called Z-910-A-2. If successful, Z-910-A-2 will die. It is believed the corpse will be used to produce more Z-910 specimens, although it is untested as it's radius would extend into the rest of the site. Z-910-A (as well as Z-910-A-2) were discovered when Captain Ward and his squadron were responding to calls claiming the nearby abandoned Vannah hotel had the smell of rot coming from inside. As the squadron entered the hotel, they were locked in by Z-910-A-2, who killed all but 4 members directly (Excluding Captain Ward himself, Lieutenant Jackson Johnson, Lieutenant Thomas Pyne, and Private Ryan Winston) before being captured. It should be noted that Lieutenant Pyne was infected, but was able to be contained prior to becoming a Z-910-A-2 specimen. Like the other Z-910 specimens in containment, once infected, Z-910-A-2 will lose its ability to speak, instead communicating with other Z-910 specimens through growls. It is believed that Z-910-A is the reproducer of the Z-910 species, with the role of clearing out a safe space, creating young from the carcasses of successful Z-910-A-2, and having said young be protected by Z-910-P.
It should be noted that all Z-910 subjects have at least shown a disliking to letting other creatures near, with Z-910-P being outwardly hostile. This avoidance does not apply to the other Z-910 specimens, supporting the theory of Z-910 specimens being social creatures, including Z-910-S.
Note: There is currently one human test of the effects of Z-910 genes. However, Z-919 has proven unwilling to cooperate, attacking and killing the remaining members of Captain Ward's squadron, including the captain himself. Z-919 is currently being monitored through the functioning cameras inside of the Hadal Blacksite. If encountered, bring him to the surface alive and notify HQ.
*"We'll be able to break him" is crudely written underneath*
If these documents are shown to any unauthorized personnel, you'll be put up for demotion, and any cover up fees will be sent to your relatives.
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[I want to reiterate that I mostly wrote this in one afternoon.]
[If only I could have the same motivation to draw 919's ref]
@crawling-through-vents
[The Z-907 mentioned]