COMPETING IDEAEDIT Some Background Information ADDED
I beginn from the Head till to the Feets^^
Name: ExecutionerHead:
A Cracked Skull where you can see a rotten Brain with a Decayed and Decomposed Face without Eyes in the Eyeholes.
Theres a Broken Part in the Skull where you able to see his Brain if you should Hit that Spot the Executioner will immidetly Die.Rotten Upper Jaw with some Meat/flesh Remainders hanging down a completly broken and hanging down lower Jaw with a Tongue hanging out, and from the inner Eyehole 1 hanging down eye "with the eye vein" lays on the Tongue like an Watcher Eye.
He is able to Gulp his Eye to Protect it from any DMG if your able to Hit it the Executioner will walk Orientation Lost around and Hit Everything what comes in his Attacking radius.The Watcher Eye has gained the Ability to have a Heat View implemented by some Military Scientists,which makes Him able to See trough Walls and Find his Targets even if they CoverBody Torso Thorax:A deep "Cut" between his Rips from upside down like a zipper =|= Which he can open his Chest to catch his Victims with his Movable Rips if he comes to close.
It was Designed to make Prisoners and prevent them from Flee but the Experimental Biological growth accelerator gone terrible wrong If He catches a Victim he will Dismember it Slowly with His Sharp CLaws on his Left Hand instead of just Catch and Prison them.Some inner Organs will drop out on that Action like the Stomache and Intestine.
This can Cause the Victim to Slip out on it :P
Arms:On the Right lower Arm he has an sewn on Axe which he uses do Dismemberment his Victims or Cut theire Heads off.
The Right Arm is Strong and Largley,and reachs nearly the ground where the axe scratches along.
It was Attached an Prototype Sharpened Axe by Military Army to cause Heavy Melee DMG with Devastating Power to Cut Trough nearly every Armors like Paper,negative Effect the Executioner is Vulnerable if he Draw Back is Axe cause of the Hip Bone rubs.The Left Arm is more like from a Human Being but the Hand is Formed like Razor Sharp Claws to cause strongly bleeding wounds.
Which is supposed to Slow his Victims cause of the Slow and Limping Moving Speed of the Executioner.Lower Body:Theres nearly no Flesh around his Hip Bones just some last hanging pieces of meat/flesh which cause him to walk bent till he draws the Big Axe Back which makes an shattered sound because the hip bones rub each other.
The Shattering Sound can cause DMG to the Ears which have a chance to cause some confusing, Orientation lose, equilibrium disturbance if the Victim was to near.Many Scientists and Soldiers died that way on the Try to Stop this Gone Wrong Experimental Specimen
Legs:Left Legs looks like from a Human Being just some bloody fleshwounds and a open break on the knee.
The Right Leg has the same shape like the other one but the right foot is nearly broken apart which cause him to limp around.
Which him makes to an Slow Target.The Sound which makes the Lower Leg bone on the street cause his foot is rotatet to the rear on walking is marrow shaking to the Ears of the Human Victims.
This can Cause a Stunn Effect where the Victims have to Protect theire Ears which makes them unable to use any Weapons for a Short Time.
Negative Effect is you can Hear the Scratching and Shivering sound from the Bone at a Further Distance which makes the Specimen early Detectable.
This Sort of Speciman is Easy if he comes alone but be aware if he comes with Sirens or a Bunch of Cloats you can easily oversee/don't Hear Him.It breaked out with the other terrible gone wrong Experimental Specimens
I Hope you Like my Ideas all out of my Fantasy and my Brain^^
EDIT: Pictures AddedThe Lower Jaw Part where the eye should come from the inner head and lay on the tongue with the eye vein


The foot part where it rotatet to the back First Zombie from left

The Head Part no eyes in the eyeholes and some blank bone parts with a bit of flesh/meat

The Body Part with the Rips able to open the chest to catch his Victims where inner body parts can drop out

The Axe Arm Part a bit like this just more heavy and bigger
EDIT:The Pictures are just as an Example to get an Better imignation of what i mean not as an Final Version !!!