Well there are 2 ways for that:
1) to find the address that contain the IDE of a car which have the ability to fire hunter projectiles and then write sparrow value in it,
2) to put 2 invisible actors on the places you want the projectiles to be fired.
Number 1 way would be the best but I don't have that address. Try the mem documentation in III other.
Number 2 way recquire building a little complicated code (start reading the opcode database).