your degree should:
1. be something you are interested in
2. be something that allows you to enjoy your college life
3. be good for something in case your plans don't work out (injury, epiphany leading to long dull life of celibacy and pacifism, commissioning plans fail, the Navy finds out about the hookers and blow pyramid scheme, etc.)
In addition to academics, look at doing some extracurriculars such as sports, volunteer fire or citizens patrols, etc.
Get a degree that you'll enjoy and you'll excel in. As long as it's accredited, you're golden.
Please elaborate.The key is WANTING to serve not "wanting a commission"