I just had an interesting first time encounter with these 2... During my playthrough, the "kill the bandit leader" assigned to me to unlock Lakeview Manor was Bannermist tower. When I arrived near the tower-- despite being in sneak mode and still hidden-- the combat music began and an orange/white dog (fermi) ran by me away from the tower towards the valley... I saw what I thought to be a wolf ahead (turned out to be kepler) and he appeared hostile, but when i rotated 360 with the compass on, there was no red indicator for a nearby enemy. I took a swing at him anyway because the wolf kept rushing in with an attack animation-- but not actually attacking-- and that's how I learned he had a name "Kepler" when his health meter appeared in response to my attack When I arrived at the Tower, all the bandits were dead and the bandit leader was locked inside the treasure room. Arrows wouldn't go through the portcullis and she was unable to open it, requiring me to pick the lock and then kill her. Having killed Kepler, I then googled to find out they were Skytest add-ins, so I loaded my most recent autosave and ran through the same scenario a few times. Each subsequent play through, the two dogs stayed down in the valley away from the tower, just sitting together. This was when I realized the other bandits weren't supposed to be dead at all, nor was the leader scripted to be inside the treasure room. I can only assume they -- edit they = the 2 dogs from Skytest -- killed the bandits during that first encounter (?)