Jerry Sims is one of 16 castaways aiming to outwit, outplay, and outlast the rest in Survivor: Tocantins.

The 49-year-old Rock Hill, South Carolina native grew up in a poor family and had to fend for himself at an early age. It’s certainly helped him to get where he is now: he enlisted in the Army National Guard, and moved up to be ranked 1st Sergeant, with a specialization in Nuclear Operations. Fresh off a tour in Afghanistan, he handles a group of 100 men and managed to pass down his skills to them while earning their respect. The same also goes at home—the self-professed family man had to deal with a large household during his childhood, and does the same with his wife of 25 years and two adult children.

He may have a cheerful personality, not having qualms about making his fellow castaways happy, but he shouldn’t be thought of as weak. He is confident that Survivor will be an avenue for his physical prowess and leadership skills. That, and his competitive streak, may prove to be vital for his quest for the million dollar prize.