Terminal: level 7 or below tower or up-down facility. You may or may not get radar experience.
If you're at a standalone tower you will work clearance delivery, ground control, and local. Arrivals, departures, pattern traffic. Depending upon airport maybe helicopters or other small aircraft. Very little airspace owned, little to no vectoring.
Up-down facility: a combined tower and tracon will afford you radar training. You will work the same tower positions listed above but your facility will also have a radar approach which actually owns real airspace. You'll have to go back to OKC to attend RTF at some point and thus training will be longer than a standalone. Likely your radar will be an arrival and a departure position, potential combined, potentially combined in the tower cab. Learn to use an ABCDE keyboard.
Enroute: level 10+ facilities, typically higher failure rate at the Academy but higher pay. Much longer training process once at the facility. Depending upon the center you may or may not work non-radar. High altitude enroute (think about how many times a day you can ask how the ride is) where you will sequence into whatever the majority of airport in the area is. A lot more automation tools are available to center controllers including a QWERY keyboard. Many sectors also own to the ground and may occasionally run approaches into uncontrolled airports. Centers are significantly larger facilities and can have upwards of 300 employees... This means you'll also have more amenities at work such as a kitchen, gym, quiet room, etc.