Quick and dirty tirkGGG pitch

Setting:
In the year 2XXX, the Medicina building looms over the bustling heart  of the USA, Dubuque, Iowa.(Which has inexplicably exploded into one of  the world's economic superpowers within the past century.) Despite the  wealth and prosperity its citizens live in, all is still not well  within the Iowa-Illinois-Wisconsin tri-state area. Many of the future's  blessings have inspired more convoluted acts of greed among the  country's most dangerous criminals, disasters such as conflagration and  malfunctioning machinery still runs rampant, and mysterious creatures  known as "Aberrants" threaten the very thought of peace as we know it.
This is where the Medicina ACF comes in. Just one of many peacekeeping  forces employed by the IACI (International Aberrant Chasing  Intelligence), the Medicina represents the finest in human  technological advances in defense and crime prevention. Despite this,  it's fallen on some hard times recently, and is now relatively  understaffed on recruits. This is where you come in. (Or at least,  where you would come in if certain DISAAASTER hadn't struck, more on  that soon.)


Aberrants:
Few have any leads as to what they are or what they want with us. What  little we know about them isn't even close to being disclosed to anyone  but the highest ranking officials.
What we do know, however, is that they're dangerous. Aberrants, no  matter what they may initially seem, are deemed a threat to humanity,  both organic and mechanical, and are to be dealt with accordingly by  the proper authorities.
Despite this, Aberrants are incredibly varied in scope, and not all of  them are inherently threatening. They're most likely not even all the  same species. Because of this, Aberrants are classified into ranks by  the IACI:
E Rank Aberrants are not only completely harmless in every way, they  don't even have the potential to act as a possible threat if they  tried. This rank is usually reserved for unusual objects or severely  crippled organisms that nonetheless exhibit unusual properties linked  to Aberrant behavior.
D Rank Aberrants don't express any harmful intent, and act just like a  peaceful human or animal would. Nonetheless, they do have the potential  to cause harm and destruction if they suddenly have a change of heart,  or in some cases, become aware of their situation.
C Rank Aberrants are more likely to cause destruction and express  misanthropic behavior. Yet, in one way or another, they aren't deemed  threatening quite enough to be classified as B Ranks.
B Rank Aberrants are the most common types; These Aberrant live only  for carnage and destruction, or so they appear, and have more than  enough power to carry that out.
The gap between A Rank Aberrant and B Ranks is quite considerable, and  for good reason. An A Rank is typically colossal in size, capable of  leveling city buildings and wiping out entire blocks. The power of an A  rank typically far exceeds that of an average Chasing Frame, and thus  taking one out is a far more difficult and dangerous process which  requires precise organization and planning.
S Rank Aberrants are thankfully a hypothetical concept for now, but if  one does arrive, the threat it would pose to humanity would be nearly  apocalyptic in scale.


Chasing Frames:
Before the development of Chasing Frames, taking down a single B Rank  Aberrant was a difficult and dangerous process that on average resulted  in 30 casualties. But never underestimate humanity's uncanny ability to  adapt. Within a few generations of research and scientific progress, the world's top minds bound together to produce the most hardened warriors known to mankind, capable of fighting on equal footing with the Aberrant threat. CFs come in two forms: a complex arrangement of machinery of varying sizes utilized by humans, or machines/alt. Humans created with the sole purpose of confronting powerful abominations.
Despite their intentions, Chasing Frames are still commonly used to prevent other sorts of disasters and to put a halt to extreme criminal activity.

Variables and Alternative Humans:
These are the politically correct terms for advanced mechanical beings, with Alternative Humans essentially being androids indistinguishable from humans, and Variables being more obviously mechanical constructions that still nonetheless posses human-level AI. The creation of perfect human AI is still a relatively recent thing  with a long string of history behind it, so machines do still face some discrimination among certain human groups. Nonetheless, these beings are still officially classified as being part of the human race, collectively.
Despite how advanced they are, these machines still aren't quite perfect. On occasion, due to a glitch in the system caused by rare errors, malicious viruses, or by virtue of being built with cheaper parts to cut costs, the robots can occasionally go haywire and act out dangerously unpredictable behavior. Machines under this sort of phenomenon are referred to as "Irregular AIs" or IAIs, and are treated with the same amount of force to be applied upon a C or B class Aberrant.