You pay in-state tuition at Nevada state supported colleges and universities, even as a nonresident, if you were honorably discharged from active duty while stationed in Nevada. Being stationed at the Marine Corps Mountain Warfare Training Center at Pickel Meadows, California counts.
Ask the admissions or registrar office at the Nevada state supported school you are applying to for in-state residency classification, and give them your discharge paperwork.
Your DD214 showing an honorable discharge and your duty station in Nevada at the time of discharge.