SS13 - Grey Transhumanist Party

SS13 MODE - Grey Transhumanist party.
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Basic Idea:
Greys have finally learned how to power their telepathic abilities and are working forward to upgrade all Greys with robust new non-recessive genes, and they have some unrelated mutations gotten by injecting non-humans too.
Sadly the crew of SS13 is too dumb to actually use their fancy baggage on, so they get to be testing monkeys for the actual things.

Grey Transhumanists will regularly drop on-station through automated teleportation tolls and and exit the same way.
Using their skills causes them to take stamina damage or brain damage. They have small doses of some chems on their base ship, but otherwise not much protection.
As you might have guessed, all grey transhumanist antags are, well, grey. There should be 1-2 of them depending on how much power they have individually, but I was hoping there would be more than one or if the round didn't end at the first transhumanist death...

Grey Transhumanist objectives:
Inject X [species] with prototype [species specific Structural Enzymes modifier]
Steal [some bluespace technology they don't have]
(Dunno give me some ideas)

Grey Transhumanist powers:
In-built teleport tracker, can request a teleport back to base with a tool.
Standard, already available genetic telepathy and telekinesis powers.
Something like TGstation's Wizard "Repel" power.
Levitation(You know the code on the Fairy Wings that make you fly? Yeah, that.)
[DUNNO REALLY]

Note on taking the Serum:
You will die.
Seriously.
The only fun will be seeing out HOW.
There doesn't need to be any special code for this, I'd rather not have people accepting the !!GREY MINDPOWERS!!, it will objectively much better to have the crew be hostile to them.