Douglas county paintball club is an hour and 40 minute drive from medford. Pretty far but really worth it. Gets together once a month, like their fb page to get the dates. All day air with entry is $5, paint is priced $35, $45, and $55 respective to quality (all Valken), but the field is byop as well. There is woodball and airball, so you can play whichever.
The club gets people consistently from farther out than you will be so I figured I would suggest it. I myself am just over an hour away. Perry, the guy that runs it is worth the drive alone. Such a nice guy you just want to support him. Anyways, highly reccommended.
You can call me Slow.