Since FStormRender is an integrated 3dsMax renderer, it should work in general terms without us adding anything special to Deadline to support it. The only thing missing would be the capturing of FStorm-specific parameters by the integrated 3dsMax submitter (SMTD) for adjusting them after a Job submission from inside the Deadline Monitor.
Have you tried using FStorm with 3dsMax in Deadline, and if yes, what problems did you encounter?