As it's classed as an extreme sport - maybe that's something event organisers can take advantage of?
Perhaps tagging paintball events to other extreme sports expo's, & trade shows (excel, olympia etc), running events alongside festivals etc - much like the bombr games they had alongside one of the mill events - maybe this would encourage further growth or awareness of the sport in the UK!?
(I'm assuming that we're predominantly concerned about the perception of the sport or lack of, purely in relation to the UK)
Also as suggested elsewhere maybe sites that are more accessible and visible to the public would also encourage growth - but then you'll have all the usual problems with local councils and jobsworths who make simply operating a paintball site so difficult, even if its out in the styx!!
It may not be the best televised sport (in comparison to say snooker/darts/F1/curling
) but it is an exciting sport! And something that seems to have proved its popularity stateside.
But to change public perception is something that would take a whole lot of time, effort & money - without any guaranteed pay off
It's still a growing sport, and its growth of the sport that needs to be encouraged - things such as a dominant national league etc will follow naturally in due course.