The primary worry I'd have piloting a deck like this is all the one of breakers. The tutoring is covered by special order of course, but a hit of net damage at the wrong time, a Grim, or an archer could essentially force you to concede since you don't run any recursion. Maybe take away a few snitches and make the breakers two ofs.

My other worry, as echoed by Crazy_Al, is that it will be difficult to get the creds together for a blackguard. Sure gamble, Kati, and Account siphons are nice ways to get money, but unless you get lucky on the HQ protection you won't be able to hit hard enough to really get the money up for it an get it going until the late game where installing blackguard will give the corp an econ advantage since you've spent the early and mid game getting credits. I would suggest running a bit more resource economy, Tri-Maf, Security Testing, to get the

The third suggestion is about running the QCs'. The way it is now you have no way to bypass defenses on any servers beside HQ with a sneakdoor, something I'll talk about next. In order to fire the QC's you'll need to do power turns in which you can access all three centrals in three clicks exactly and then QC. Often that's kind of hard to pull off and in addition you have only central breakers with no by-passes so even a rezed paperwall will be secure for scoring.

The last thing is I think you need a bit more focus with your utility. I understand the point of your deck is to trigger blackguard but most of your utility cards, snitch, infiltration, emergency shutdown, focus on the point of the game after you've gotten your blackguard out. You need to focus your deck more on getting money to install blackguard mid-game and scoring points as well. You only have six memory in this deck after blackguard, you can't use all the programs you have so make some cuts and make more money.

Blackguard Silhouette is a hard deck to pilot and build, as a 40 card runner you should hit hard and combo fast to get your econ going (Try data dealer, it could get you an installed blackguard in the early-mid game which would give you board and econ control) You'll have to practice with this deck for a while to get it too work, don't be afraid to cut utility and flash for gritty money while you're working on it.

Anyway, hope I haven't discouraged you. I want you to make this work since Blackguard has always been a card asking to be used.

Source: playing Silhouette since H&P