Here's the list of jobs being handed out this year for those getting there commission:
FY '12 Commissioning AFSC Requirements
13DXA Combat Rescue 7
13DXB Special Tactics 8
13L Career ALO 13
13M Airfield Operations 11
13S Space & Missile Ops 96
14N Intelligence 176
15W Meteorology Weather 23
17D Cyber 80
21A Aircraft Maint 40
21M Munitions/Missile Maint 13
21R Logistics Readiness 47
31P Security Forces 28
32EXA Architecture Civil Engr 2
32EXC Civil Engr Civil Engr 1
32EXE Electrical Engr Civil Engr 4
32EXF Mechanical Engr Civil Engr 4
32EXG General Engr Civil Engr 26
32EXJ Environmental Engr Civil Engr 0
35P Public Affairs 12
38F Personnel/Manpower/Svcs 44
61AX Math / Ops Research Scientist 20
61BX Behavioral Psychology Scientist 3
61CX Chemistry Scientist 2
61DX Physics Scientist 0
62EXA Aeronautical Engr Developmental Engr 28
62EXB Astronautical Engr Developmental Engr 12
62EXC Computer Engr Developmental Engr 9
62EXE Electrical Engr Developmental Engr 78
62EXG General Engr Developmental Engr 47
62EXH Mechanical Engr Developmental Engr 15
63A Engr, Math, Mgt, or 24 hrs Acquisition 50
64P Contracting 22
65F/W Financial Management 22
71S Special Investigations 8
Total Non-Rated Line 951
Pilot 505
Nav 204
ABM 68
UAS 80
Total Rated Line 857
Total 1,808
As you can see, there are a LOT of choices (just like in ALL the different services). As in each service, there are different jobs one would consider the "operational" type (i.e. what most people would imagine as being the "pointy end" of the stick), and there are others that are "support" (i.e. the rest of the stick; not the part that is associated with the actual killing, but without it, the stick is pretty much useless).
For the AF, ops is mostly associated with rated positions, and these are mostly given to about 1/3 of our Officer Corps. While there are some rated enlisted positions, they are in the vast minority. Since such a small minority is actually "rated" (which most unfamiliar consider the "warfighters" of the AF), the AF tends to get an unjustified rep as being "sittig at a desk back home".
Other "ops" types of positions (that most outside of the AF are not very familiar with) include our Special Tactics and TACP guys, but as you can see form teh stats above, they are VERY rare. Our missile folks are also considered "ops" (their sticks, however, are just a little bit larger.
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Take a look at what's available; ask around here if you got a particular question about a particular career field, that's what we are here for (with many of us having some experience with these fields).
Better yet, search the AF sites themselves to get a good description. An background story for each of these career fields is just a google search away...