That sounds like a neat idea actually. I'm not into army-building myself, but if you're gonna do it, then I like the idea of individualising each trooper. You may even want to write up individual names and profiles for them too... make them like the Clone Troopers from Star Wars, they're all clones but have individual personas, names etc.
I would sometimes do this when I used to collect/play Star Wars Minis... I'd occasionally give a random trooper an individual persona. For example I had a Rebel Trooper who's name was Cheney Chitmel... and an ARC Trooper named Sven (who had a bad Swedish accent

). The annoying thing was that it made me
care about these otherwise nameless minions... and of course, these generic troops are relatively easy to kill, so whenever Cheney and Sven would be killed, I found it more emotionally wrenching than just losing some nameless mook!!