"Do you expect to tag me?"
"Tag you? No, Mr. Bond. I expect you to tag yourself."
This is a variant of Tag Storm I've taken to calling Tag Drizzle because of its difference to your standard Midseason Replacements based tagging. This deck relies on attrition and runner frustration to allow them to start tagging themselves, and then punishes them for it.
Data Raven, Hunter and Information Overload all are standard tagging ICE, and Information Overload doubles as a punishment mechanism, but the really frustration should come from Manhunt and ChiLo City Grid. ChiLo City Grid turns Viper into tagging ICE and doubles Manhunt's punch. If they float a single tag over for one turn, nail them with Big Brother and make them decide they have to go tag-me.
If a runner manages to play it safe and clear everything, that should give you enough space to score out an AstroScript Pilot Program with an ICEd server and win the way only NBN can.
More likely is that the runner will at some point decide to float tags, and that's when you can start putting the screws on. Tag punishment comes from Psychographics, Closed Accounts, Information Overload and Scorched Earth, all of which have a great chance to darken a runner's day, either speeding you up, slowing them down or blowing them up. Archived Memories allows you to make the Scorched Earth play stick, since this deck doesn't tag on the corp's turn.
Notes: I recently pulled the SanSan City Grids from this deck because of money issues, opting instead to score AstroScript Pilot Program out of a server when the runner is too poor to get in (this does happen). I am not sure whether or not this is a good idea; only testing will tell.
As a note, removing SanSan City Grid was a mistake. It made the deck rely too heavily on AstroScript Pilot Program, and losing even one of those means that you not only have to slow advance out an AstroScript Pilot Program, but you'll have to slow advance another agenda as well. The deck can handle slow advancing in the early middle game, but as soon as the runner is definitely set up they can wait for you to make a remote play and you'll never keep them out. So, SanSan City Grid is back in and I had to put some Melange Mining Corp. to help with the economy issues SanSan creates.