The last summer will be one session of Operation Air Force, but more indepth interaction with the officers on the base. The second session will be another leadership training, but you will have more command positions for the CST or BCT activities. The third session is leave or academics. This summer is also the opportunity to do Deployed Ops which takes two sessions so you will give up leave. In this you will deploy to a forward base (currently one of three bases in the Middle East) and work with the officers there. My son got to do this and he loved it.
No OpsAF firstie summer anymore.
3* summer: Mandatory is airmanship program and ESET. Optional leave or academics.
2* summer: Mandatory is Ops AF and 1 period of leadership. Optional leave, academics, or another leadership period.
Firstie summer: Mandatory is 1 period leadership. Other common options include powered flight, CSLIP (language immersion), CSRP (summer research), or another period of leadership. Optional leave or academics.
Leadership positions can be BCT cadre, ESET cadre, summer seminar, soaring/jump instructors, sports camp, and other command positions.
For example for me:
3*: Jump/GE, leave, CST (now = ESET)
2*: Ops to Dover AFB, leave, BCT cadre
Firstie: 4 week CSLIP to Panama, leave, easy BCT cadre job. (this is probably the best schedule a cadet can get)