Feeling in this undead heart (pitch x jack)

In a world where the dead become the living, and the living undead. 4 people known as "The guardians" are scientists scattered around the world trying to put an end to this zombie outbreak only few cities survived but barely.The head of the guardians scientists have called then all together in a secret location an island deprived of any of the undead in a underground facility. they don't have many resources left but they hastily make the trip there. As they are now gathered together knowing nothing about why they were called there a voice The head of the guardians Manny speaks to them over a radio telling them they will be having a new addition to the group to begin working together on a cure and that they may have found "Patient zero".

(Deep in underground facility)
"patient zero" sits in the dark his golden-silver eyes watching and waiting behind bulletproof glass cell (cage), he smirks knowing that his "Old friend" had brought them all here "this was going to be fun" he thought. Knowing full well their going to try and "cure" the zombie outbreak even when he himself has tried and failed before and he was the best of the best. He also knows that there's only roughly 0.0016% of the living population left which would estimate to be 128, 059 thousand and most of which are only meer children. There's also the military group that brought him there along with safely bringing "the gaurdians" to this facility, known as (Y.E.T.I.'S) standing for Youth. Entelligence.Training.In.Security. which in his opinion is a stupid name but then again it is a newly made military group from which this damned zombie apocalypse created. patient zero didn't mind being in the cage in restraints as long as he can be able to do his own research, relieve his boredom maybe a few experiments or two on a few unlucky children and most of all plan his next move for the foreseeable "future" he'd be content.