They won't be rent-a-cops, they will be the real deal: Secret Service, alphabet agencies, local police, state police tactical units and possibly National Guardsmen. They won't harass and break bones, they will shoot to kill. The only time more govt. officials will be in the same room is during State of the Union address. If some group took out the RNC and the DNC, that takes out the Legislative branch, and more importantly, about 9/10 of the line of Presidential succession (2 or 3 of them will be inconspicuously absent).
The Campaign has a strategy- whether or not everyone agrees with it, that's another story. But what they've been doing is exactly how they planned to do it since they decided they weren't going to keep Romney form getting 1144 votes. Ron Paul said so himself the day he guest hosted the CNBC morning show several months ago- he would run the campaign in a 'modified way'.
It is unfortunate and frustrating that they can't say what's really going on in their emails, but how many seconds go by from the time they send an email before it is posted online for the world to see?