I would love to see a roster, which is a list of units currently in service.
This list could be presented that way :
Soldiers
Number/Matricule Name Nation Date joined Rank #missions #killed
(...)
Pilots
Number/Matricule Name Nation Date joined Rank(?) #missions #killed
Killed personel
Number/Matricule Name Nation Date joined Rank Date killed #missions #killed
Nothing to fancy, it serves the only purpose to make the player have a feeling towards its troops. We all had favourites soldiers in XCOM. I always loved to compare their skills with other soldiers. And, if they got KIA, I would simply restart the mission
Malick