So maybe I am misunderstanding something.

Fictional positioning happens inside the fiction. Maneuvering the fiction into particular state is how you do it.

Social positioning happens between people.

Psychic positioning happens in the minds of participants.

Tactical positioning happens ???
From your description, the answer is: everywhere, or wherever, or something like that. This is interestingly asymmetrical; tactical positioning is clearly different from the others. Why is this?