High Tech Mysticism & High Caliber Adventure Part III

An A.I.M. assault group! 

There's one organization that has kicking butt & taking names since the 1960s in the Marvel universe (but why limit ourselves to the Marvel universe? More on this coming up) 

Why yes we are hiring? 

A.I. M. has been around since the 60s when it was created by Stan Lee & Jack Kirby. These guys would be the maddest mad scientists of all! With a distinctive bee keeper helmet they're the backers your group would possibly working for!
 For a high stakes dimensional hopping game they'd be the ones that would be pretty much on target for hiring mercs like Warheads & others of their ilk! According To Wiki : 'A.I.M. is an organization of brilliant scientists and their hirelings dedicated to the acquisition of power and the overthrow of all world governments by technological means. Its leadership traditionally consisted of the seven-member Board of Directors (formerly known as the Imperial Council) with a rotating chairperson. Under the Directors are various division supervisors, and under them are the technicians and salesmen/dealers.

The organization supplies arms and technology to various terrorist and subversive organizations both to foster a violent technological revolution and to make a profit. A.I.M. operatives are usually involved in research, development, manufacturing, and sales of high technology. Members of A.I.M. are required to at least have a Master's degree, if not a Ph.D, in some area of science, mathematics, or business.

A.I.M.'s reach is worldwide, including various front organizations such as Targo Corporation, International Data Integration and Control, and Cadenza Industries. A.I.M. has also operated under some other fronts including Koenig and Strey, Pacific Vista Laboratories, and Omnitech.

A.I.M. has had a number of bases of operations, including a nuclear submarine mobile in the Atlantic Ocean; a base in the Bronx, New York; Black Mesa, Colorado; West Caldwell, New Jersey; Asia, Canada, Europe, Haiti, India, Sudan and Boca Caliente (also known as AIM Island), an island republic in the Caribbean.' ' 
  A.I.M. has been involved in every dirty deal in the Marvel universe & some outside. You can read about them Here

Where should this take place? 

We're not restricted by such things as IP or some such nonsense when this is a PERSONAL CAMPAIGN! So my clear choose would actually be the Cross  Over Earths from 

Superman vs. the Amazing Spider-Man (1976)^[9]

The first official intercompany crossover of recent decades. The villains are Doctor Octopusand Lex Luthor.
This pretty much allows the field wide open for all kinds of adventures featuring 

The DC Universe is not, let us be honest, one that is famed particularly for international criminal/terrorist groups. Marvel Comics has HYDRA, AIM, the Hand, the Maggia, Roxxon, and of course all the splinter groups that come along with those big, important evil ones
Lesser ones include 

the 2000 Committee, ASP, the Assassination Bureau, the Battalion of Doom, Black Ops, Cell Six, The Council, H.I.V.E., The DMT, Eurocrime, Locus, Les Mille Yeux, MAZE, the Oblivion Front, Scorpio, Shadowspire, SPIDER, The Veil, VULTURE, and no less than threeseparate unrelated outfits known as the Network.
 So really your  part'y's chances of employment are pretty damn amazing at this point
                                                               So you can have this
                                                                                                          

& Their competition in the form of these guys! 

You can read more about the crossover Earth Here
Where to send the party?
Hmmm