Hello.
Yeah. Absolutely. And it is quite likely that many of the solitary beasts are not affiliated with Ink's group.
That's exactly the main reason why I establish the idea of having very well organized zombs which have a network of subsurface channels, hiding places, their own set of "outposts" etc. And with Randy carrying around chemical stuff this gets more than less likely. Why the big EFF would a (smart) zomb run around with this crazy stuff? Only, because there is a reason behind it ... .
Best wishes!
Liam
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