Fort Paintball is prob the closest to you. I've been once, I think there is a big woods area towards the back but I've never played it. You might shoot the Dallas Daredevils a question, they play there frequently.
There is/was? a field in Anna, TX called Collin County Paintball, I've never been, from what I had heard about it is that its mostly woods but it sounded like it was going out of business. Again I've never been so I really don't know that as fact.
There are two big fields south of Dallas in Forney; Cousin's and Official paintball. Both are more on the woods ball side.
In Waxahachie there is Maddogz, then in the Grapevine area you have Xdrenalin Zone. In Fort Worth there is Fun on the Run, and in Roanoke there is DFWAP and up 114 from there in Rhome is Paintball Paradise.
And somewhere in Alvarado there is DFWPRO, I've never been but I've heard its all woodsball. I think Microswitch's family runs it might give him a shout.
Hope this helps
Oh sorry FT Paintball is in Parker close to the Plano/Allen area.