i like the idea. the right click uses more water than it takes to get to the destination with just left click. you might want to make some balance changes there. this is a good concept though. can't wait to see it get fleshed out
edit: also another idea would be to indicate where the fires are with arrows. i didnt know how many fires there were until i flew around the map. prob make some invisible walls so people don't fly out the map. this definitely has potential