Raymond started playing games in general since he was very little. He actually started out with his grandmother on the NES:
"I started playing when I was very little with my grandmother on the Nintendo Entertainment System playing Super Mario Bros and Pacman. I progressed through all the Nintendo consoles up to the Nintendo 64. In 2007, I found out about Call of Duty 4: Modern Warfare, and I got really interested." He started competing and playing GameBattles with some friends, but then it progressed to being more serious. He started competing for money after watching the MLG National Championship 2008 from home. In 2009, he starting playing the PCL's possible in order to start attending events at the end of that year.
Rambo is one of the worlds most famous Call of Duty players, and during his career he has been playing for big teams such as OpTic Gaming and Team EnVyUs. He has been successful in every Call of Duty title, and he was able to secure a 2nd place finish at the Call of Duty Championship 2013 with Team EnVyUs, winning $50,000.
On January 7th 2014, Rambo announced via Twitter that he would be moving into a coaching role overseeing Team EnVyUs. It was announced after Scump had left OpTic Gaming to join the Team EnVyUs squad. Rambo assured everyone that this wasn't a retirement, it was merely taking a break and step back from playing and allowing him to create more content for his channels on YouTube & Twitch.
On November 29, 2014, it was announced that Rambo has joined Sledgehammer Games, in order to help consult and improve Call of Duty: Advanced Warfare.