"He encouraged them to be better, and he filled them with courage, and in the evenings he filled them with good food. He made them feel ten feet tall - all within days of his arrival. Most of all, he possessed an infectious smile that lifted us all, no matter what the situation. He was a proud family man, and I remember him speaking with pride of the love he had for his wife Lisa and son Brandon. My thoughts and prayers are with them at this terribly difficult time.
"His loss is felt widely - he was one of those characters who just seem to make the battalion a happy and productive place to be. He leaves friends in all of the companies, who will miss him dearly. Serjeant Campbell was proof that good people do not need a long time to leave a lasting impression on others. A born leader, we will follow in his footsteps and finish the race that is set before us."
"I have had the privilege of knowing Serjeant Campbell for my whole Army career. Fresh out of Sandhurst, I did not quite know what to make of the grinning, gap-toothed Geordie standing in front of me - the Section Commander who everyone simply referred to as 'Stevie'.
"He was already something of a legend in the company, respected and admired by the Riflemen and chain of command alike for his professionalism, energy, love of his job and his men, and perpetual good mood. I thought he must be either the product of a scientific experiment to lock the entire energy of the sun into a human body and watch it try to get out, or simply high on life.
"One could not help being dragged along in this torrent of positivity, uplifted by his mere presence. We got on particularly well as the youngest guys in the company with prematurely receding hairlines, much to the amusement of the Riflemen who would 'twin' us at every opportunity.
"With promotion and time came wisdom, but no drop in pace. As a Platoon Serjeant, Stevie was everything and more that any Platoon Commander could ask for; professional, diligent, utterly motivated and dynamic.
"A more honest and loyal man you will never meet. His lads meant everything to him - there is nothing he wouldn't do for the men under his care, including gripping them when he needed to. He would back his Platoon Commander to the hilt - even if he made a bad decision - and would follow the platoon through hell and back, but given half a chance he would lead them from the front all the way. Above all, he was always happy, always smiling, positive to the end, and made soldiering fun for everyone around him.
"Like most keen soldiers, he was a keen football supporter. He was constantly updating me on how Newcastle were getting on in the league, which had recently started to dent his relentless good mood, while dishing out as many jobs as he could to all the Sunderland supporters in the platoon. Done with humour and good nature, this typified his bond with his men.
"The more I got to know Stevie, the greater my respect for the man grew. He balanced his military career with spending as much time as possible with his beloved wife and son in Newcastle.
"The biggest smile I ever saw on his already permanently grinning, boyish face was while his son Brandon, aged five with cam cream smeared all over him, fired a GPMG [general purpose machine gun] balanced on the back of Stevie's fellow Platoon Serjeant at a demonstration day. The same passion and dedication which he showed at work was a fraction of that which he felt for his family.
"If I could sum him up I would describe him as the family Labrador. He was full of boundless energy and fun, mischievous if he could get away with it, totally honest, adored being around those close to him, utterly loyal, and truly a man's best friend.