Way back years ago, Sterling Airsoft used to offer such 'event's where they would teach special tactics. I've just checked their website and they are still around but obviously shut coz of Covid. No idea what the prices were back then but it's got to be circa £50+ per person depending upon numbers... I mean it's not gonna be cheap lets face it... time is money and time is valuable.
The key to any good tactical play is team work and communication. I have often seen small squads all kitted up and constantly in comms with each other, but they are mostly the minority and then I see them working with themselves and not with any other groups. They moved well, they moved with purpose and they looked as though they knew what they were doing, so you wanted to tag along to stay alive and learn something...
However, Airsoft for many is pure fun and having a laugh and getting away from the kids and the wife... and many would probably not give two hoots about tactics etc... It would be nice to learn some basic tactics and suddenly become a Seal Team 6 operative for a few hrs... I'd jump at the chance and I'm sure many others would too.. but it only works if there is a squad of you else it's not gonna be fun will it? And also, it's airsoft, the only important thing is capturing that flag so charge in with both barrels. If you get shot.... shit happens... go to regen and start agian... and again and again... (unless you only have 2 lives )