Hey all, this is Dirdy teammember from DeltaSquad out of columbus ohio.
As far as Scenario fields go there is like Bootman said Battlefront which is about a 3 hour drive from columbus but defintly worth it. I think there may be one or two also in the Cinci area and South of Columbus, but thats really all i would know. We hit alot of private fields up for practices. Then their are those typical weekend walkon parts where speedball fields have some small sort of woodsball field, good for playing with the team to get some practices and teamwork in but nothing really scenario type.
One field we really like which if you live in or on the west side of Ohio its only about a 5 hour drive from Columbus and worth every minute of your time to check out this field. Its called Sherwood forest, one of the best fields i had played at handsdown. Which is in Indiana along with some other scenarios there im sure.
But as far as ohio goes, Battlefront is the biggest scenario field i know of.