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Headcrab Zombification

This addon will add the ability for Headcrabs to latch onto human NPC's and turn them into zombies, making them much more lethal as seen in Half-Life 2.
They can zombify, rebels, refugees and citizens. If a combine unit is infected by a Headcrab it will turn into a Zombine (EP2 required for this).

Code: https://github.com/Stickey15/Stickey-Lua-stuff