I have converted a helicopter for FiveM fully functional with a working hose.
Use door controls to open the rear right door to drop the hose down.
You can also press SPACE, Right mouse or A on the controller to drop water.
Add the folder “firehawk” into your resource folder.
Add “start firehawk” to the server.cfg and restart the server.
The spawncode for the helicopter is “firehawk”
I did not make this and do not take credit for it, I simply just converted it into a FiveM resource.
Hope you all enjoy.