RTR's Lauftroll chase inspired me a bit and since I didn't really feel like sleeping yet - (famous last words)
(Characters are a mix from groups 2 and 3 because according to
Curry those two overlap somewhat.)
Lauftroll basics: it's basically built for ambush but it does have some weak points regarding that, too.
It's really bad at estimating correct height of a target for example, especially if the target moves suddenly.
Another problem: it's used to prey that tries to get away. If you don't move it practically can't see you, and since it doesn't really have any feeling left in the arm parts it can't really tell if a non-moving object is edible or not.
It
is really good at spotting movement, however.
Estimated outcome: an all out battle involving Gwenno in usual berserk mode.