I am not the tournament organizer, I'm just signal boosting.
AFAIK, though: Standard steamroller, with death clock, as per the current steamroller packet. As for questions not answered there: What is "Base line?" Specialists are no longer a thing. Final standings might be based on average of CP and AP as tiebreakers, but you'd have to check with the TO. No house rules I know of. Objectives and scenario elements will be provided. I recommend bringing a printout of your Conflict Chamber list, just in case. I don't know about wifi at the venue. The only incentive to keep playing after you lose is because you enjoy playing the game. Check with the TO about the prize kit and prize support.
Here's the facebook page for the event: https://www.facebook.com/PdxOpen/