Most firefighter programs should simple in design.
If fat loss
is your goal:
2 strength + 2 GPP sessions
If strength/hypertrophy is your goal:
3 strength +1 GPP session
You can do Crossfit/powerlifting/ bodybuilding, what ever method you choose.
Just plug it into that template and you'll be good to go.
Next time I'll tell you why a weekly 7 day template is the worst thing for firefighters!