Author, you have a lot of simple errors here, from unnecessary capitalization (and killed 12 Agents / 1 Hour of contact), incorrect terminology (it's "Foundation agents" and not "SCP agents"), and mixing up "it's" and "its". "It's" means "it is" or "it has", and is not the possessive word (every time you use "it's" in the draft, it is done so incorrectly). For fixing simple issues like this, I highly recommend running your draft through a word processing program or writing assistance tool like Grammarly (which is available for free).
Out of curiosity, what grade are you currently in at school? Most successful SCP authors have at least some college-level writing experience, since clinical tone is typically covered in college. If you haven’t encountered clinical tone or writing analytical essays in school yet, it can be hard to write an article that possesses the unique "flash fiction as written by a professional scientist" tone the site audience is looking for. If you tell us where you are academically, we can recommend some materials you can study up on, such as these college resources for clinical tone:
http://www.aje.com/en/arc/editing-tip-maintaining-formal-tone-scientific-writing/
http://academicguides.waldenu.edu/writingcenter/scholarlyvoice/tone
https://healthcare.utah.edu/brand-and-style-guide/writing-guide.php
Conceptually, this is a fairly straightforward and predictable dangerous humanoid formulaic approach. The SCP-049 mention is completely unnecessary and seems like a shoehorned attempt to make your humanoid more interesting by association (for examples of more meaningful reasons to crosslink, I recommend reading the Crosslinks Guide). Before attempting to rework this piece, you should definitely read this essay on common SCP pitfalls to get an idea of what elements to avoid putting in an SCP article, as well as the the humanoid writing guide if you haven't yet.
Suffice it to say, this will need a lot of reworking, both conceptually and writing-wise, before it will stand a chance on the mainsite.
I recommend getting the base idea polished up in the Ideas and Brainstorming forum before you try fixing the draft. Go to that forum, post a quick summary of the concept you want to write up (don't link the draft unless someone asks), and reviewers there can help you make the idea more interesting than a generic thing that kills people (having the body count of 12 out of 20 will make readers roll their eyes these days; it's an overused scare tactic that doesn't really work anymore) and also namedrops more compelling characters like popular SCPs and Norse mythology figures. What you have here needs to stand on its own a lot better than it currently does.
