I was originally given orders to become a Combat Engineer, but the Marine Corps had a critical shortage of Field Artillery Fire Direction Controlmen (0844), and since my ASVAB scores were high enough, I was reassigned to that MOS.
If I remember correctly my wartime placement would be 7th brigade, 2nd AA-battery, 1st platoon fire control & signalling chief.
Sounds a lot fancier than it actually is, and it involves a lot of sitting around, watching a big green hunk of metal and listening to guys who spot for planes with an old German periscope-type device from 1936. I also have to use various sorts of communications equipment. This is what I did as a conscript too.
EDIT: Just thought I'd put in a picture of the German device.
I would like to be a field medic (ambulance/driver) because I have my specialty emergency treatment -bullets and splinter wounds- shock treatment- etc etc in my backpack from the completed upper secondary education as a nurse. I am a bit rusty but a crash course in a day or two and I would be kicking again. I also have some extras like Guerilla Warfare and special forces operations knowledge that I have been studing on my freetime with help of Field Manual FM 31-21 etc etc So if I could, I would like to be a field medic in a smaller unit because I dont found the company sized formations to funny. They would most likly never excist in a large scale war over here. To much to put toghter, to easy to find. I prefer smaller more "mobile" units thats all. It is my grandfathers fault he was a Finnish paratrooper and told me alot of storys about his father that fought against the soviets in a "jaeger jakkue" group somewhere on the Karelian Isthmus.
After I finish my time here with the Royal Military College (only 14 months to go) I'll be a 2nd Lieutenant with pretty much my choice of job. But my 1st preference is Infantry Platoon Commander, 2nd preference is crew commander of the light horse (meaning armoured corp). But as for now I'm just a staff officer cadet at RMC Duntroon (for those who don't know it's the Australian equivelant of West Point or Sandhurst).
There has always been compitition for the Combat Arms. Mine was the first Chem OBC class that had West Point cadets. That was in 1993. Even then there was competition for those guys on what combat arms branch you could get.
And for ROTC it has been competitive for the combat arms for at least 20 years. The assesions board process is such that unless you are in the top 10% of your class, give or take, you won't get your first choice automatically.
Even for some other branches, its a crap shoot. I had a 3.5 GPA, prior service enlisted time as an MI SIGNIT analyst, language school, and a current TS clearance. My first choice was MI and my second choice CHEM. I got my second choice. I always thought it was a decision that was very wasteful of Army resources. But, after my carreer, Chemical has been a very rewarding and interesting time, and it was my second choice