Citizen With Fast Zombie Animations

Title says it all, I need a citizen that can use fast zombie animations, for an npc I’m working on, if that would be possible. Thanks in advance.

Is it a crack addict? No matter what this is, I’m sure it is easily done. Which may not be a good thing, because people will tell you to do it. I’ve tried to replace Alyx myself and failed miserably.

If you want this to be done, you have to decompile zombie and citizen, and replace citizen with zombie, since when npc models are compiled they have loads of .smd files each on for different animation.
Thats what I think.