These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Good Bad Bugs: It's possible to lose survivors on search parties at random. This can still happen when you have no other survivors with you. Basically, the one survivor you have (yourself) can die on a search party, possibly multiple times, and still go on slaughtering zombies.
Nightmare Fuel: The death scene involves your character being tackled to the ground and eaten alive by zombies as he visibly screams and tries to fight them off. This isn't a cutscene either-it's a death animation. Only lessened by the Have a Nice Death message.
Some of the notes in Union City can count too. For example, there is a very poorly spelled note from a little girl whose nanny told her to leave a goodbye note to her mother, ugh.
Strawman Has a Point: Sure, HERC is awfully quick to shoot at you and they did do some pretty nasty things to some of the evacuees in Union City and to the civilians in Dead Zone's backstory, but the only one you see for sure is your spouse, who has been infected. The only reason that HERC are stopping you from leaving the mainland is because they don't want the infection to spread further. This may have been mildly lampshaded at the end when, after escaping by allowing the hordes to overrun the last safe place in the city, your boat stalls and the screen fades to black while you hear a growl as, presumably, your spouse turns into a zombie. So much for escaping safely.