A pair of bumbling ISIS fighters named Abu just can't seem to do anything right in a headcam video found after a fierce battle with the Kurdish Peshmerga.

The video -- found on the helmet of a dead fighter and turned over the Vice News -- exposes the feared terror group as a gang of hapless militant wannabes, as they're seen turning on each other for pointing their guns the wrong way and nearly killing each other.

A fighter named Abu Hajer is shown in the footage firing from one of three Islamic State armoured cars advancing across a barren plain towards a Kurdish position. His rifle slips and he fires off a shot inside the vehicle.

"Abu Hajer! Stop firing!" shouts Abu Radhwan, the camera in his helmet picking up anguished faces as it swings erratically from views of rifles and munitions on the floor of the armoured car to the brown fields and blue sky ahead.

A second fighter, Abu Abdullah, shouts out above the sound of shooting: "Abu Hajer! I told you to aim higher! What's wrong with you? You're firing the bullet casings straight at us!"

Abu Radhwan then turns his attention to Abdullah.

"Abu Abdullah, aim higher and be careful! Abu Abdullah you're going to kill us!"

All spoke in Arabic.

The footage taken last December runs right up to the moment of Abu Radhwan's death.

"Get out, get out, but don't go too far!" shouts one of the fighters as Radhwan and his fellow fighters abandon the armoured car.

Radhwan picks up a grenade launcher and runs.

Then the camera swings around. "I've been wounded!" he shouts.

The camera view reels as he rolls over and over. An explosion rings out. The last, fixed, camera shot shows the burning car on the dusty plain, a plume of smoke rising into the sky.

Many fighting for Islamic state are new recruits, often from Western countries, with limited combat training.

The video is in stark contrast to the polished videos ISIS terrorists have posted to social media, showing themselves as a disciplined, invincible force, often overlaid with heroic music.