Paint Games Plus(Springfield), The Bunker(Seneca). The field is the closest of the ones I mention. It has the best natural field I have seen with speedball, castle and sup air for other options.
Review:
The airsmith is very fair and educated. The field choice is one of the best in the area, four very different layouts, off the top of my head. Reffing is usually very good and friendly, when they are not playing you. The pro shop is usually well stocked also, having nitro tanks and miscellanious marker parts on hand. They have about four different brands of paint at any given time, some good some not good at all!