Cannon crew members assigned to 1st Section, 1st Plt., Btry. B, 4th Bn., 27th FA Regt., 2nd BCT, 1st AD, fire a M107 high explosive round, which can be seen being projected from a M777A2 towed howitzer during an artillery air assault raid on April 29 that took place north of McGregor Range Complex during Network Integration Evaluation 14.2.