Below are the star levels and what you need to pass to achieve the star level.
1Star

Drill and turnout (uniform inspection)
Target shooting (if you are good enough you will be able to join a shooting team.
Skill at arms (weapon saftey, Always check your safety button)
Map and Compass (includes orienteering)
Military knoweledge (A.C.F history, Cap badge etc)
P.T (phsical training)
First Aid (Basic first aid skills)
Cadet in the community (country code etc)
2star

Drill and turnout (see above)
Target shooting (see above)
Skill at arms (weapon safety test)
Map and Compass (see above)
Military knoweledge (see above)
P.T (includes expedition)
First Aid (Basic first aid skills, you will get a badge)
Cadet in the community (e.g helping the elderley)
Adventure training (assualt courses etc)
Rifle Drill (drill with a weapon)
3star

Drill and turnout (see above)
Target shootin (see above)
Skill at arms (see above)
Map and compass (see above)
Military knowledge (see above)
P.T (see above)
First Aid (see above)
Cadet in the community (see above)
Adventure training (see above)
Rifle Drill (see above)
JCIC (Juniour Cadet Instructor Cadre)
4star

Drill and turnout (see above)
Target shootin (see above)
Skill at arms (see above)
Map and compass (see above)
Military knowledge (see above)
P.T (see above)
First Aid (see above)
Cadet in the community (see above)
Adventure training (see above)
Rifle Drill (see above)
SCIC (Senior Cadet Instructor Cadre)
Alot of leadership skills are also developed at 4*
1