This track plays when you're running a mission with your squad of cyborg agents. I'm not quite sure why the copy I found is called "Assassinate" since I didn't think every mission in the game was to do with assassinations, surely? Or maybe my memory is failing me and every mission was as assassination mission; if that's the case, it's a very fitting title.
The track is cool, sneaky and futuristic - which is exactly what you want in a cyberpunk game like Syndicate. I love that old school blare at 0:38 - can't get enough of that kind of stuff.
[ VIDEO: Choicest VGM - VGM #221 - Syndicate - Assassinate ]