no worries, I just tried again now and figured it out! and yeah, it’s hard to know how much info is too much. though tbh I think it would make more sense if all actions counted as turns, that was the main thing that confused me.
The fireman has some super human powers to be be able to fight the fire alone. For example he/she can spray and pump water super fast. Hope this makes sense. No seriously - you are right - I just don't wanna change the mechanics since then I also have to redo all the level design.