[@ShidenBlades]
There is indeed a mention of its stealth in the profile, not much more than a passing mention but only because that mention is all that needs to be said. It's also a highly intelligent ambush predator, much like its blood sucking kin. However silent it is, it can't entirely muffle its movements. That's one of the reasons it tossed the bullet as a diversion. As for the claws on stone, that wouldn't make much noise so long as it didn't go about clacking or scraping them around. 

[img]http://s23.postimg.org/6rh4cqwfv/NO_NOISE.png[/img]