Delta Green is one of my favorite games as well. I'm not the world's biggest fan of the BRP system generally, but DG is a pretty tidy implementation of it -- and the setting, the mood, the overall conceit, is just top shelf.
Sassafras -- it's a game of conspiracy theories, shadowy organizations, monster-hunting, bureaucracy, and watching the Agents (PCs) gradually disintegrate and lose touch with reality as they keep encountering the unnatural. The Cthulhu Mythos, in part, is at the heart of things, but it's not a pulp "let's shoot up mythos creatures with guns" game. The Program the players are part of is secret and potentially unsanctioned, the network they operate in is largely unknown to them, and a big part of the game revolved around mechanics intended to model the normal relationships the PCs have in their lives -- and how the awful work that they do eventually tears those relationships apart.
BedzoneII, I'd have my hand in the air if you ran a game, and I'll run one at some point if you're not likely to. One of the cool parts of Delta Green is that the operations can be very short. You might not know why, but it might be a hit on someone or a suitcase that needs moving from point A to point B -- then you just see what happens.
Fantastic game -- suspect you'll love it, meseszovo.
