To be honest i'm not in favour of limiting the players to the inexperienced only. Firstly, because as Ian (AKA Jose) says its not always easily enforceable, and secondly because it kind of defeats the point of having an competition. You can play, but not if your good. Now, i know that experienced doesn't always = good, but that would be the aim of the limitation.
However it would be nice to set up the event such that the more experienced teams don't overly dominate. Equipment limitations, could be one approach. However one of the attractions to paintball is the shiney equipment, and as we trying to give the uni's an oportunity to attract people into tourney it would be a shame to lose this. Also, people who play already might sulk
#cough#keith#cough# if they can't play with their shiney toys.
My suggestion would be to make it a limited paint event. Firstly this will reduce the cost, always a bonus for students, and also will mean that the firepower advantage of the own gunners will be reduced, due to the limited period they can sustain the higher rates of fire for. Also, with the lack of suppressive fire, it will mean that inexperienced players won't spend the whole of the game pinned behind a bunker, and might actually get to play some ball.
I'm sorry if this sounds a bit patronising, that's not the intention, i'm just trying to think how we can make this accessable to completely new players, as an enjoyable introduction to the sport.