NJ Paintball Club is designed for PRIVATE GROUPS.... they don't even accept walk ons! I discovered this field when they did accept walk-ons, back in 2001, and never forgot the awesome terrain and strict adult no-nonsence refs (who all look like they've been there since paintball was invented 20 plus years ago).
When I had to organize a Bachelor Party for my buddy a few years ago I decided that NJ Paintball would be the safest, most conveniently located, and most service oriented place to play. I wasn't mistaken! Those people up there are SERIOUS about safety and SERIOUS about making sure you get the most games in for your money. They run that place like a clock. On schedule. None of the late starts, mass confusion, and chaos I used to experience at other bigger fields. I've been back at least once a year for a bachlor party or a work related outing.
But, like I said, the big star at NJ Paintball is the terrain. This has got to be the best woodsball site in the NYC area. There isn't any sup air and there isn't any speedball... they do have an awesome village... but it's mostly awesome woods. Their website really shows it all.
One possible downside for players bringing their own paintball guns: they have no proshop and no gun tech. So you better be able to repair and chrono your own gun (however, there is a paintball shop only 2 miles away that you can drive to for repairs).
Only other thing to note: they have like ZERO TOLERANCE for goggle violations. They give you PLENTY of warnings before play begins. Like a full 30% of their waiver is just the goggle rules in big letters! And as a goof I counted how many times they told us to keep our goggles on during the morning orientation... 27 times. Naturally we had a jerk in the bachelor party who lifted his mask as soon as he was hit... but because the rest of us started yelling at him to put his goggles on, the ref was cool about it and gave him a second chance. It seems like if you and your friends are willing to cooperate and help the ref enforce the goggle rules, the ref will work with you in the event of a minor infraction. But I've seen other players ejected in a heartbeat if they pop an attitude or continue to lift their goggles. That's cool. I don't want to see any of my friends carted off in an ambulance with an eye missing. I'd rather have a ref who was on top of it than a ref who didn't give a crap.