When Cameron McEvoy travelled to Glasgow in 2014, he was a 19-year-old "kid".Twelve years later, he returns to the site of his Commonwealth Games debut as a completely different man with a completely different outlook on a sport that is almost unrecognisable.McEvoy emerged as part of the ill-fated batch of sprint stars at the 2012 Olympics — the so-called "weapons of mass destruction" who returned from London without a gold medal from any male swimmer.Two years later, McEvoy won six medals, including two relay golds, at the Commonwealth Games despite still trying to find his place in the squad."I still felt like a new person on the team back in 2014," he told reporters at Glasgow airport on Wednesday morning (AEST)."I was super shy; I wasn't really outspoken Things are very different now."There's actually a member on the swim team who's 14 [Mia Hogan], so she was only two when I was back here competing last time."A lot has happened; basically, my entire international career has unfolded."McEvoy missed out on individual medals at his first three Olympic Games and is surprisingly still hunting his first individual Commonwealth gold.At Glasgow 2014 he finished second in the 50m, 100m and 200m