yes it is *me* asking this, forgive me ive been playing the xbox version for the last year or so...

so im replaying and mopping up a few achievements on the PC version of Halo 2 i seem to have 3 profiles / saved files. Can anyone remember if there is there is way to identify which levels I have already completed on legendary?
About 2 years ago I was nearly done with my legendary play through and i was hoping I could just finish the last few (then replay for fun); but i cant figure out where the completed level difficulty is shown? - i think ive been spoiled with H3 ><.