OK, since I've been living in a 10'x12' hotel room with a 5-year old since November 1st, I'd like to go on record as saying that I don't have everything for the campaign planned yet. And by that, I mean that I've barely got anything besides the (amended) ruleset I've posted as a PDF.
However, as the campaign will not start until mid-January, there will be some time to figure everything out. We will roll out starting forces on Saturday. People will be limited by their Clan availability, and the General availability. That is, if you choose Clan Puce Sparrow, you will have access to units from the Puce Sparrow availability list, and the Clan General list, because EVERYBODY has access to the Clan General list.
As for year, tech data, experimental vs advanced vs tourney-legal, or questions about whether you should have CrapMechs for being Watch or whether the Watch's military intervention arm that's supposed to be able to take on anyone from any clan in the interests of the Watch is actually a bunch of "multinational" highly-equipped badasses...well, I've got a song about that, actually.
"If you're wondering 'bout nuts and bolts
And those AccountTech facts,
Just repeat to yourself "It's just a game,
I should really just relax
For Mystery Clan Watch Game 3070**!"
**3070 is part of the song and not intended to represent a binding commitment to an actual in-game date. This song is for entertainment purposes only; any resemblance to actual game content is purely coincidental. The GM is not responsible for any loss or injury, whether physical, emotional, or psychological, incurred while playing this song or game. People unable to relax may experience headaches, dizziness, dry mouth, loss of appetite, memory loss, rickets, or feelings that they are but insignificant motes of dust in an infinite and uncaring universe which has existed long before they did and will exist long after they have died, thus rendering excessive thought about the details of the game utterly pointless. If you are nursing, pregnant, or might become pregnant, you should not think too much about the state and details of the game. If thinking about the game causes an erection lasting longer than four hours, please see a doctor, because I don't want to hear about it. Game may contain nuts. Game is subject a variable interest rate.