There are no addns needed except resistance 1.85, trust me
the script is simple, When the tank is destroyed (automatically at the beginning of the mission) 2 triggers which control the fire starting and burning out are activited and also some scripts for the fire and smoke effects..
A game logic is moved to the position of the destroyed tank to show OFP where the fire will go
nothing more to say, just when you use it in your mission make sure to copy all the scripts needed and the fire, game logic and 2 triggers into your mission