Convert 12 Prefabs Into Agile Zombies

I have a set of 12 game-ready prefabs that must be transformed into fast, agile zombies for my Unity project. Each converted prefab should: • Use an appropriate non-pink/standard shader so nothing shows up magenta in-game. • Move, climb, and pursue targets with clearly visible speed that distinguishes them from slow, classic zombies. • Feature a built-in regenerating-health mechanic that can be toggled on or off from the inspector. • Include one bespoke attack animation (slash, bite, pounce—whichever best fits the model) plus synced custom SFX. The audio does not need to be final mix quality; placeholder clips that demonstrate timing and trigger points are fine. Please keep existing rigging where possible, swap in Mecanim-compatible rigs if not, and name all animation states logically. I will test inside Unity 2021 LTS, so be sure all materials, Animator Controllers, and scripts are set up to work straight after import with no pink-shader warnings or missing references. A short README that explains where to adjust regen values and audio hooks will round things off.