Moved to General Discussion.
Hello Esi!
The suggestion you are making used to exist, however due to it being heavily abused by players, it's been removed. The Tudor fire depatment is too far, thus rarely accessible, and for these reasons, it has been removed from script. The helicopter used to be exactly at this fire department, however got removed due to heavily being abused.
As for ambulances, the EMS currently works on escorting the injured people to hospitals, and FDLC does not require it for now.
Ability to buy firetrucks and ambulances would be a server suggestion, however is not possible.. same goes for the LCPD cruisers and the unmarked Buffalo. It is a governmental vehicle with sirens, and cannot be sold for obvious reasons.