So we're going to poison the water supply.
Excellent.
I'll repel from the roof my twin desert eagles glinting in the moonlight, but only enough to make me look badass, not enough to attract attention. Then I'll Sam Spade through a window and Solid Snake through the halls. If there is a guard sleeping I will let him finish his dreams before plunging him into a nightmare. After dispatching my foes I will remember what my mentor Tom Church has taught me, everything he has taught me.
Before I can get into the water supply room I have to cross a ballroom filled with ladies and gents. They will be drinking but I do not drink. I get out of there before they can notice that i am not in an outfit. I have my poisons in a pouch. I will then mix the pouch with the water supply so that the players that have paid money and signed up for Tom and Aaron's games will get nasty fevers and not be able to play, because they will be too sick to play.
Then everyone on the internet RPPR Forums will have a chance to rub their Zoom H2s together. Maybe Henry Rollins and the avatar of George Carlin will show up to bring us crystal pepsi and rub us with diamond encrusted dick wipers. The game will be splended. There will be no survivors.