Some time ago I made this request on feedback tool:
The problem was that I got 3 soldiers from scripted events and though I was playing on easy difficulty all soldiers had starting stats for legend difficulty (14-6-14) . Here is example:
Yesterday I started new campaign on veteran difficulty and got lvl 3 soldier from scripted event with correct starting stats
Or this was some glitch in my first playtrough, or bug is corrected but not documented in patch notes. If second is the case THANKS!