I'd assume it's just natural height variation. I mean IRL, my friend is 5'1", my sister-in-law is 6', and I'm right in the middle, and that's just from a small sample size.
I can't speak for OS2's internals as I haven't successfully modded it yet, but e.g. Fallout 4 allows you to specify a range of heights for any given NPC (or group thereof) which will be chosen at random.
Last edited by vometia; 25/11/17 03:47 PM. Reason: Accidental Spın̈al Tap units
