I haven't played about 10 years and I just played at paintball command in Mandeville yesterday.
Its about an hour from Baton Rouge and maybe 45 mins from Denham Springs. As far as I know it is the only place in southeast Louisiana with an air field. They have a pretty good turn out every weekend but it is mostly rec ballers. It was 100 degrees and there were about 50 people at the day's high point.
Other than that, OFF Limits Paintball near Shreveport has plenty of speedball fields and some indoor fields too.
How long have you been playing speedball for?