Is there somewhere that I could find a list of all the branch choices for the Army ROTC that you get to pick from?
Also, if my major was Criminal Justice and my top choice was Military Police, would I have a higher chance of receiving that position over someone with the same grades and athletic participation?
In addition to branches, there are functional areas that you can go into a few years after serving in your initial branch out of ROTC.
If the military-political realm and a particular language interest you, then Foreign Area Officer (FA 48) is available.
I know a lot of Signal officers who went into FA 53 which is Systems Automation.
If standing and talking in front of people intrigues you and you like to write, then FA 46 (Public Affairs) is an option.
If you think space is the next big thing (it probably is), then the Army has FA 40 (Space Operations).
A functional area that is very translatable in the real world whenever you decide to leave active duty is FA 51 (Acquisition Corps).
If you like to play with people’s minds to change their behavior, then FA 39 (Psychological Operations and Civil Affairs) could be for you.
Finally, a actual branch that is out there but you have to serve a couple years in your initial branch is Special Forces. I think the Army lets you apply once you’re a promotable 1LT. Most of those who go SF were infantry officers first.