Some of those groups will tweak the equipment.
You mean like the Pakistani ISI or Army for Terry Taliban? Discussion of this apparently ultra-sensitive topic has been blocked - twice - on Jetblast by the moderators.
When I saw the documentary about the Royal Anglains(?) tour in the 'Stan in 2006, I thought to myself that quite a few of the Taliban looked like they might be Pakistani Army (or ex-Pakistani Army) soldiers - you know, "ex-Pakistani Army", like the "ex-SAS" who went to Afghanistan as private citizens to train the Mujahideen against the Russians back in the 80s.