Hmmm... smoked bratwurst...

1) Where and when can the event take place?

Anywhere in the base, where/when the hero gets within a defined range (x meters, to be chosen by the production) from SS-Schütze Reinhard Brandt and/or his dogs. Or possibly in the room next to the room where Brandt is at the moment. (I suppose he would have a round route which he would follow with his dogs, this could be timed and repetitive... something for the PC to "change" in a way or another so to be able to get to a specific place otherwise unreachable)

2) Other limitations/requirements?

The hero needs to be carrying some bratwurst sausage or other similar meat-product in his bag. The main idea is - Brandt and the dogs will have a "detection range" which is increased if the hero carries some food appealing to the dogs with him.

3) What triggers the event?

Obviously, when the hero gets within the increased "smell range" of the dogs...

4) Brief description of the event.

Alright... so our hero is walking in the base when all of a sudden he gets within nose-range of Brandt's dogs. Which will be bigger or smaller depending on items in his inventory.

To start with, he will hear the SS mutter to his beloved animals in the next room and ask them what is going on. There could be a number of different sentences to be picked amongst randomly, to make the scene more realistic when it happens again. Things of the "What's up, boys?" or "What do you say, there's someone in there?" kind. While writing for Brandt (possibly in German) please remember he sees the dogs as brothers more than pets. Also his sentences should be as short as possible. He is a very straight-to-the-point man.

From this point there could be a number of options:

If the hero stays where he is or goes forward to meet the guard: If he is not wearing a nazi uniform disguise, he will be attacked. Else, he may be saluted/confronted/questioned depending on the rank he is wearing. There should/could be a chance to simply get away, or to get away somehow befriending the SS and the dogs by offering the meat.

If the hero walks to safe distance immediately: Brandt will chase briefly but not reach the hero, always staying at least one room behind. He'll tell the dogs to get quiet, or some officer may complain. "It was just someone walking by." One other of the random sentences he could mention (and which obviously should be possible for the hero to overhear from the next room) could mention the specific food the hero is carrying so to give a hint to the player as to what is happening. "Hmm... I so much wish I could have a smoked bratwurst right now..."

If the hero walks to another room but only after some time, and does not keep fleeing: Brandt catches up and the first scenario applies.

5) Any additional information.

I think it's pretty straightforward as it is. ;)