SpicySpider Unfortunately, if you want to modify the health of the panzer you would have to modify _zm_ai_mechz.gsc in zm_tomb_patch/maps/mp/zombies. This is because the health is only set at the init() and then only when the panzer's health is supposed to increase in mechz_health_increases().
It is likely there will be a lot of bugs due to how big the script is so you will have to fix it.