indoor sites
played a few in the past.
one i played at had a think layer of sand, bit heavy to run on, but nice and soft for sliding on. bit smelly cos all the old paint just got covered in sand and was rotting. not like outdoors where the rain washes it away.
another was just painted concrete with nothing on it. a bit slippy on the break out but it did get cleaned 3-4 times a day so it was not too bad.
Steve shepherd place in bristol is nice, a smooth floor but with sawdust on top of it. gets a bit slippy where the sawdust covering is thin, especially in the basecamp and behind bunkers. went on my ass a few times at that one.
i played on the astro turf at campaign, nice! great for long runs and cool for mega slides, but you do need some good knee and shin pads cos it will wear through your pants else (as i found out first game) and it burns you skin! bit expensive i'd of thought for an indoor paintball site.
the euro indoor is a sandy soil, nice and soft but great for running on. looking forward to that one this weekend.