I am a 12B and was in OIF2. My BN's job was Trailblazing - route clearance all the way from Camp Summerall/Arlington ( about 20 mikes N of Speicher) to just a bit North of Taji as well as routes to Anaconda via O'Ryan.
I'm sure the names have changed since then or no longer exist but that was our mission in OIF2. We covered over 120 (?) miles of Tampa looking for IED's. Back then we didn't get Buffaloes till the last 3 months of the tour. Then, we got 3 of the total 11 in Army inventory (as of Nov 2004). A majority of the tour was done in hillbilly armored 5 ton dumps with sandbags and wood against increasingly complex 155mm IEDs, rpgs and small arms.
We had 4 KIA and 25 wounded, several severely with face removal/limb removal.
I think CABs awarded then were appropriate. We took contact and by the nature of the mission, could not pursue beyond 300 meters to either side of the route. Our number 1 mission was to keep Tampa open for coalition forces.
Now, from what I read, it's gotten to be if you were near a mortar strike on your way to the PX on Anaconda.
Anyway - I think there were a good many 12B's and 31B's who earned them. Sometimes there would be 12Bs right alongside 11B's putting rounds down on an assualt (Operation Baton Rogue) and all we got were the CAB.
It is what it is.
Maybe there should be a Outside the Wire CAB and FOB CAB