Another field that I've played at is
Range 14; It's right outside Joint Base MDL in Browns Mills nj.
R14 is a decent outdoor field with an extremely low price($10!) for admission. They run airsoft games every third Sunday of the month, along with any extra events listed on their site. There is also a shooting range and a skeet range if you somehow own a real gun in new jersey. This field would be a good place to go if you don't usually play outdoors, as it's easy to navigate through and it's small enough to find the staging area if you get lost. There's a central 'base' surrounded by circular fortifications, which offers a lot of options for games to play.
There are a couple things to keep in mind when playing here though. HPA powered equipment is banned, and there are a couple rules regarding magazines. You are only allow to carry in one high-cap and when using the high-cap you're limited to using semi-auto only. This rule helps to prevent over-shooting which is always good. However they also require everyone to carry radios and whistles, which seems kind of unnecessary since it would be difficult to get lost in the field. Lastly, there isn't a field store available, so you must be prepared with your own equipment.
Overall, R14 is a nice field to play relaxed games at a low price.
