You are not alone in missing parts. I do have the dagger armband but not the other armband, also dont seem to have the hot pants for females only seem to have the science officer chest slot. No rank and guessing the third variant of uniform is that unlock at the end of the event.…
Also can add an issue with coloring the boots. Only the first color channel changes second one seems locked on default color third and forth can be changed but don't look any different from defaults.