I play with a MUSH group online- there are 4 of us with military/mercenary/government backgrounds that operate a clandestine STAR (Special Tactics and Rescue) unit that is sponsored by an alien ambassador & their various connections. We started unofficially calling them Zero Division in reference to the math meme of internet fame. In character there's a bit more to it, as documented on their official profile page:
Most members could be considered Tier One Operators individually, but together- they are truly a Tier Zero Strikeforce. This is even more fitting as the 'Tier' system is not a rating system but a SOCOM funding method, and this team receives no funding from public sources.