I've never personally seen a positive review of any of these events, not denying some might exist but I've only come across scathingly negative reports. I'm honestly shocked to the point of comedy that they're still going 😂 I feel like they're only saved by the fact that there's very, very little else in terms of options for big weekend games that aren't leet-hardcore muh-imershuns MiLsiM which will entice people to go to the expense and effort of significant travel; especially given the rare and unusual sites they somehow (??) manage to obtain usage of.
I don't run sites, zero experience in that area, but the impression I get is that people who have done it for years are constantly tweaking their layouts and games to make best use of the physical area available. They usually start off with at least minor issues, often major ones, but if they refine the site over time they've got a chance of keeping a place going long term. Hence, I would personally have pretty much no expectations of an unusually large game running even close to smoothly at any location that's never been used for airsoft before. That's no dig at all at people who go along to such things, I also really want to play at disused theme parks, prisons, forts etc, way more appealing than yet another patch of flat woodland with some plastic sheet stapled to pallets. Just an issue with this type of game organisation that I can't really foresee being overcome.