They were always seen as expendable, unarmed, out front, but what a morale booster when you heard that coming and the reason the enemy wanted to put an end to the squeeling cat!
Airborne units had pipers right through WW1 and especially in WW2.
Pegasus Bridge capture was an inpiration whilst under fire, once the gliders had landed, the piper from the Airborne unit and Lord Lovett's Commandos was very prevelent!!