I like the VICAR-structure that you provide @LFB !
What’s your concept of an actor? Does this comprise the preconditions?
I’ve experimented with structures such as Attacker with [preconditions / actor?] achieves [postconditions / impact] by [attack / vector]. See also 
GIVEN WHEN THEN Threat Modeling. You add the So we will [control] with prio [ranking].
We seem to have similar thoughts here… 