That is a navigation marker. It is used precisely twice in the entirety of both encounters. This is something that vanilla does have, most people just don't know about it, because of how rarely Croteam used it.
Cerberus' attacks are very easy to dodge. Even if it’s a group, it’s still easy. A group of kleers or cucurbito is definitely more dangerous
Yeah, it's not supposed to be a particularly dangerous enemy. Sort of a weaker cucurbito, but turns around quicker.
