Replace the soldiers and zombine with the beta alien assassin (Very dark and griddy)

You know how HL2 has a lot of cut enemies, there are Cremators, Combine Guards, Hydras, etc. 
But one of those enemies has a design that I really like and it's the Combine Alien Assassin, you know these poor transhuman unit that was later reworked into fast zombie and who's model was deformed and combined with some other scraped combine enemies to create the abomination that are the Synth Soldiers from HDtF.

Well but telling cut content stories is not the main point of this request so I might just tell you what I want now: 
Could some nice fellow gamebanana user replace the Combine Soldiers (standard, shotgunners, prison guards, elites) and the Zombine (nice joke Alyx) with those alien boys from the beta?
You know make them walk around with guns and shoot at you, and also put some headcrabs on their head so they can try to eat you in EP1 and EP2.

But make sure all the variants look a little different from each other just like the normal soldiers, so the standard soldiers should have the normal assassin textures but the shotgunners, guards and elites should be a little edited (the same goes for Zombine) shotgun guys could have a more brown suit color while the guards could have some blue on them, of course the elites should be white and the Zombine... well just regular Assassin with some blood covering it's body and a headcrab on it's head, also if you could change the skin and eye color for each of those would be cool.

Oh and one more but very important thing: this model tends to get a little broken when they ragdoll so it would be nice (actually it's required) if you could fix that, you know make sure that their body don't stretch like some kind of horror monster and the head don't go all the way down of their body like if it wants to see all the rocks on the ground, instead make it stay right where it's supposed to be: their necks.

And finally before I forget here is a link to a gmod addon from which you can take (in a legal way I believe, if not then make sure the cops don't find you) this model from: https://gamebanana.info/
Now my fellow gamebanana site user that came across this little request, can you think about it and maybe even do it? Pretty please

The reward is a sweet number of points and in here they are like money you know.

Requirements

In order to receive the points bounty, you should fulfil the following requirements.

1. Replace all the soldiers and zombine with the alien assassin
2. Make each soldier variant have a different suit, body and eye color
3. Make the zombine version have blood on it's body and a headcrab on it's head
4. Fix the ragdolls from glitching out if they do so

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