Extremely late to the party with this thread but since it was my first mills, I'd like to weigh in.
In short, it was an amazing experience. People always talk about how strict the MS refs are but from what I experienced on the OD2 field, they were no stricter than at CPPS. Being able to play, explore a reasonably large trade area and also watch multiple divisions of paintball being played out over multiple days was a really worthwhile experience. Credit where credit is due, the MS wasn't THAT much better than CPPS in terms of field organisation and scoring, but that is more due to how good CPPS is nowadays. One major difference I did note was that it takes a hell of a lot longer to fill out the team sheets at Mills (you need to complete a sheet for each game you play with all your players' names and their ID numbers) as opposed to what we're used to at CPPS and they don't give you much leeway in terms of time but as long as you're organised, it's not a problem.
Yes it's significantly more expensive that domestic leagues but in my opinion, simply having the chance to play foreign teams makes it worthwhile.
In terms of personal stories, we left Edinburgh at 4am on Friday. After missing the M11 turn off and getting severely lost in deepest-darkest England, we eventually rocked up at Basildon around midday. Obligatory Mcdonald's consumed, we headed to the site to get registered and watch as much paintball as possible. We had 5 prelim games, 3 lined up for Saturday morning and 2 around lunchtime on Sunday.
Dragging ourselves out of bed around 6am on Saturday, we headed to the field super early to make sure we were ready for our 8.15am game. It seemed to pass in the blink of an eye but by about 10am, we'd finished our first 3 games winning 2-1 against Mayhem Knights, losing 1-2 against Evilmen Toulouse then winning 2-0 against Ugly Ducklings 3 (Barnett's team for the event...). This put us mid-pack which we were pretty happy about for our first mills! Sunday came round and we had the long wait to prepare for our games. I'd been warned that they don't usher you at all Mills so was quite worried about the field running ahead of schedule. Several back and forth trips later, I was reasonably confident we were on time so managed to watch a few pro games. We had some of the last OD2 prelim games so there were plenty of people watching. We ended up beating Assala Libreville and Operation Sandbaggers 2-0 which spectacularly stuck us in 1st place in our group!
We had about 20minutes before we then had to play our final 16s game. We came up against a tough team called Rotterdam Supreme (who told us we were going to lose before the game [totally quaking in my boots...]). It went to a third point and then overtime but we managed to squeeze them out (I even bunkered the last guy!). Came off the field, went to shake their hands but got grabbed by a table official who told us they were waiting for us on the SPL2 field for our quarter finals game and that we had 3 minutes! Literally grabbed everything and ran to the next field. Table officials said they'd give us 5 extra minutes but since we'd manage to sort ourselves out quickly, they dropped this to 2!
We had to play Oslo Embers to try and reach the semis. Unfortunately this turned into another long game going to overtime where we sadly lost however nobody was down. Everybody was smiling, in a sense relieved that it was over and that we'd done okay! Later on at dinner we realised we'd actually done the best out of all the teams that got knocked out in the quarters, putting us in 5th overall for the event! 5th out of the 36 teams that entered OD2.
Oslo Embers went on to come 2nd, losing to Stoke Quest (who incidentally were the only British team to finish in front of us!) who were playing incredible. We entered Campaign as the only Scottish team in attendance, in a packed OD2 division which had loads of British teams playing. I feel pretty proud to say that we ended up 5th and it definitely was an experience that I won't forget in a hurry! I think I'm looking forward to Paris now even more than I was before...
TL;DR (for those of you that can't be bothered reading all the above rubbish)
We did alright, it was fun.