Oh there's some jump scares. Be out gathering supplies at night when a zombie comes running at you from behind or at the side, bashing your skull in.
Crawlers sometimes get me too, especially in the grassy areas. Ill clean out a wondering horde and will turn to see one suddenly at my feet. Sometimes i hear them....sometimes i don't.
Hit up the wasteland in search of a treasure or supply drop & suddeny find a dog gnawing at your giblets.
Go to dispatch a screamer, she yells before you can kill her. So then you think, bring it on, ill kill the few she spawned in. Then you turn around and a feral or zombie bear is hurling towards you.
There's jump scares my friend. None of the type your thinking, but the game still has its butt hole puckering moments!