A) get in a "jihad" car and blow up next to it.
(I tried and failed because he turned around and got me in one shot before i got the chanc eto blow up)
or
B) Get an RPG and get close to get a good shot.
so
i got the idea from "Black Hawk Down" how about a technical with a recoiless rifle on the back so it gives the insrgents more mobilety and firepower when it comes to Anti tank

