Private Filter
Sounds like a sloppy invasion. Uncoordinated, and pointless too since there's apparently no way of getting out.
Yeah we're all genetic mutations; transgenics whipped up, genetically spliced together, and born to be the perfect little soldiers. Though the team was called Manticore back where I come from. At least it was till the place burned to the ground and we broke free.
Enhanced speed, strength, healing, agility, senses, IQ, and all the other fun junk you'd want in your test tube child army. Sprinkle in countless hours in advanced combat and mission training, and add a splash of being raised in a secret government facility that taught us how to kill and serve on command...and you get the general idea.