So for the uninitiated, what should I be bringing, Battletech-wise, to the con?
Bring dice and a pencil. Don't need any other stuff, since it is all provided at the games. As a bonus, without having to haul around all the stuff you think you should bring, you're better set to buy stuff you
don't have and take it back to your room.
Wise con-goers bring snacks that fit in a backpack easily, like granola bars and such. Get a bottle of soda or water and refill it at the free water stations scattered about the con rather than go broke on $3 bottles in the con center vending machines. Bring cash for the food runs.
That's about all you really need.