Are you sure it wasn't an extended lunch-break? i'd find it hard to tell the difference between that and milsim; loads of armed dudes sitting around snacking/talking 'tactics' in the woods and barely any action?
A site I used to play at used to do that. The afternoon would be a longer scenario game. It would be so complicated and convoluted with objectives and times that unless you made notes you'd be hard pushed to remember what was going on. It was mainly wandering around randomly looking for people to shoot by the end of the day!
That's the issue. It looks like the "milsim" sections are going to become a regular thing. I know that it will put off a lot of new players/people who are hiring (as they only get one mag)