From The Daily Mail:

The troops are also equipped with quad bikes – four-wheeled all-terrain vehicles that can have machine guns bolted on to a frame. They then seek out IS units and attack the terrorists using the element of surprise and under the cover of darkness.

The missions have taken place on a near daily basis in the past four weeks and the SAS soldiers have expended so much ammunition that regimental quartermasters have been forced to order a full replenishment of stocks of machine-gun rounds and sniper bullets.

An SAS source said: ‘Our tactics are putting the fear of God into IS as they don’t know where we’re going to strike next and there’s frankly nothing they can do to stop us.