Some way to detect which class is performing an action could be interesting. I'd imagine both an "is class" and "is not class" would work to cover all needed options.
A potential use case: a path that's only accessible to recons to give them proper flanking options, or a path for guardian to let them safely engage in fights deeper into the map without worry of interception.
This could also potentially be used to ensure only one class is available for community minigames where one specific class could, in theory, break the game.