Ok, bit of an update. I went here at the weekend and can confirm all of what @Luke85 stated in July.
The brief was overly long, yet still managed to leave out important info such as that the entire site was semi only (I had to ask). There was a total of 2 Marshals all day neither of whom seemed overly interested in the game or the issues presented to them. The game didn't start till nearly 11 after gates opened at 0830.
The biggest issue however, and one that I spotted right after the brief, was that the teams were divided down into the 'regulars' who were all a bunch of hardcore geardos - you know the type - and whom I assumed to be the Head Marshall for the day (he had gave the safety brief, more on that later) vs everyone else who had bothered to turn up. You can see where this is heading, as we did and sadly we weren't disappointed in our assessment. The hit taking and general power gaming from this bunch was appalling. I was hitting people from less than 4m away in a building (they couldn't see me as I was shooting through a large hole in the wall at an oblique angle) with .36s and I could visibly see them flinching but they all consistently failed to take it. They all failed the number one rule of Don't be a Dick by turning up with respirators (yes!) so they could use smoke grenades indoors on purpose. The amount of solid state grenades being chucked around by them was silly.
One game of hold an objective for 10mins was so obviously bent in favour of this bunch of regulars was ridiculous. We had held it for over 10mins before a Marshall even appeared who promptly declared it contested before the other team finally took it and we had no chance of getting back upstairs.
I can take the non hit taking but the power gaming was awful, we left at lunch. Speaking to some of our team members who had been there before, apparently this is a regular occurrence when this bunch turn up. A great site, being badly ran by the Marshals to the betterment of a small in-group.
Put it this way, I usually don't feel too bad about any particular site if I am getting loads of 'kills'. My battle buddy and I consistently outplayed this bunch of 'milsim' regulars, I got loads of kills and I enjoyed it not one jot......
Avoid till its better ran. Final point - the 'Head Marshal' that briefed wasn't actually the Head Marshal, just and I quote one of the other Marshals - 'A bloke who helps us out occasionally'. So they basically let a paying player run the safety brief and the games for the day.