Ok, before we go completely crazy with tossing random ideas in and such, I just want to get some of my thought processes out there so people can better understand what I'm aiming for.
Thing the firstly- While this is not a direct port of any setting or system, I am drawing inspiration from the various UFO-type games out their, chiefly
XCOM, the
UFO: Afterblank series, and the
Area 51 series (mostly the first FPS, the second was too busy Bush bashing to be of any use). So when I make a decision about what is in the setting, it will probably have some link to those primary sources.
For instance, CETT's custom assault rifle is in 6.8 SPC. Why? Because the original Rifle in XCOM was 6.7mm, and that's the closest caliber that already has rules in Spycraft.
Another example, in UFO: Afterlight, one piece of tech the player can build and equip his/her troops with is an "Accelerator" barrel attachment, which basically applies Gauss gun tech to "stabilize the bullet's trajectory and decrease wobble" to increase standard firearm damage. Hence the idea I posted earlier of a Gauss barrel attachment to handwave the standard gear list's damage being on par with lasers and "plasma" weapons.
Thing the next one- Having said that, I also am a
major fan of Aliens/Starship Troopers style military sci-fi, so some elements might end up sneaking their way in from time to time.
Like when I say "Heavy Laser", I'm thinking less vacuum cleaner and more
McKillsblaster.
Also twin-engine VTOLs. (And before you point out the Skyranger, that is in there too as the Russian High-Speed VTOL for long-distance deployments, alongside the American "Stork" Heavy Lift VTOL, the German "Valkyrie" Combat VTOL, and the American "Arrowhead" Stealth VTOL. Yes, I have put some thought into CETT's vehicles, too)
Thing the last- Metal Slug has ET-like aliens in it, so it makes sense that CETT has Metal Slugs, right?

This the last final- Just so other GMs out there know, while the game I plan to run does follow the militaristic exploits of the Counter Extra-Terrestrials Taskforce, it is by no means the
only part of the setting. I am intentionally designing in room for other people to do their own thing as well if they want. For instance, the Minds and Technologies Collective Headquarters is a great place for more Gonzo SCIENCE adventures into the unknown. Or, if you have an affinity for nice ties, a suit, and a Q-brand briefcase, the Global Alien Monitoring and Enforcement group is always popping up mysteriously on your doorstep.
Also, just because you might have been abducted, doesn't mean that your adventure has to never start. There have been reports of abductees who were able to escape their confinement. While the ones known about were those who made it back to Earth, it is not impossible to think that some had to escape by going further into space. Who knows, maybe some were even able to commandeer their own spacecraft...
Thing with the Ps and the Ss- While a Gun Bunny might be a bit... focused for any setting, anyone mind there being Tank Vixens? Been tweaking the Like A Fox! race that I posted a while back, and I do have some interesting back story that'll fit. (And don't worry, there can be male versions, too) And, y'know, it's kind of been sitting there all lonely and all...