With this mod you can put peds on fire by aiming at them and pressing "K".
There's a "timer" that shows in percent when you can use the fireattack again...
Put the FireScript.vb into your Scripts directory. (default: c:\program\rockstar games\gta iv\scripts)
You will need the HazardX's .Net scripthook
How to use this mod:
Just aim at a ped and press the button "K" on your keyboard.
Sometimes you need to aim at the head, otherwise it wont work.