Re: VtM: Infiltration/Researching ideas
The first question you have to ask yourself is, "How up to date is my hospital?" Now in days, many hospitals have electronic locks, security cameras and a handful of security on staff in the evenings. That does not even include the inquisitive night shift nurses or Doctors there as well.
If your PCs are actually going to break into the place, you're going to want to determine how many guards you have and what general areas they patrol. To answer this question, you have to ask yourself about your hospital once again. "How big is my hospital, how many floors does it have?" Along with that question, you'll want to have a general idea of where the blood is stored, and plant information for the PCs to find so they know what floor/wing they need to head to.
In the case of a small hospital, perhaps one or two security guards would suffice. Perhaps one is always watching the cameras and the other will patrol a certain area or floor at different intervals.
If you want to totally randomize this, you could roll a die. If it comes out odd, he patrols an odd floor first, allowing the players to sneak passed him for now. However, do not leave everything up to just a roll. You will want to build the suspense of them being caught, after all and if your players know the pattern, that can ruin the fear of "Is he coming!?"
Subtle sounds such as air ducts, footsteps, the rolling of a janitor's cart, patients murmuring from their hospital beds are all good sources of "What was that!?" when people are trying to be sneaky. Use these sounds during your computer hacking scene if you want it to become stressful.
Speaking of air ducts, you will probably want to figure out now if they grant enough room for someone to crawl through and if that answer is yes, just where the entrances and exits are located.
Minor annoyances to consider would be..
Locked doors.
Security cameras. Will the PCs be able to find routes to go around them or must they turn them off?
Chatty nurses who wont leave the station to allow PCs access to a computer and how to lead the chatterboxes away.
Bob the Janitor who is just trying to do his job. What can a Janitor do? Oh I don't know..a wet floor without a wet floor sign. That can allow for a roll for a PC to keep his/her balance or slip and fall. If PC slips, skids or what not across a floor, that's going to cause a loud noise and subsequently draw the attention of hospital staff or even curious patients. Bob the Janitor is also a good source of keys.
Patients. It is a hospital. Some patients hate hospitals. Some may be trying to escape in the dark of night. Others might be paging for a nurse and need aid. Would your PCs have their heart strings pulled and help or will they prey on the weak?
As they are Vampires, you are also going to want to consider what disciplines they have at their disposal and plan ahead.
Sub-quest idea - If there is a mental ward. Consider a Malkavian ghoul or kindred who is locked away and needs to be freed. Once freed, that NPC would owe a boon. This is also a good way to introduce a new player to the story if you had any in the que.
All in all, try to cater this adventure to your PCs skills and they will have a lot more fun, just don't make it too easy.
Just keep all of these things in mind and try to build suspense. Play on their fears, strengths and even some of their weaknesses and I'm sure you'll do fine.