Sailors are about to get a taste of what like to have a Marine gunny as their leader. Since the day Gunnery Sgt. Sgt Bothvill Valcin met a commissioned officer at boot camp in 2000, he thought about going mustang. After 13 years in the Corps, a college degree, deployments to the Middle East and Asia, and working with special operations units, something was still missing from the gunny’s life: his commission. The Marine Corps gave him a lot of opportunities, he said, according to a Marine Corps news release. Just not the chance to become an officer, despite several applications. But…