Wait till one of your super strong guys gets killed with a crit from a basic thug
That's just it - you've got this trooper you've levelled and equipped through several battles in the past and then BAM - lucky hit and s/he's dead.
Now you might actually
feel that loss instead of just tossing some coins off and getting an exact replacement.
These are the rules of the game, if you want to go build a super army ,go knock your socks off, but dont expect
everyone to follow your ideas, which personally I think is just a GW game with a different backdrop.
And that's another thing - nobody
is forcing anyone to use these rules.

I believe the point of the thread is for like-minded individuals to discuss ways of going about the soldier progression.
No doubt at least partially thanks to my background of tabletop RPGs the lack of soldier progression was a slight disappointment for me, so I've been writing up rules to level and gear the soldiers up as well as making up ones for a Captain who apparently is going to be an official future addition anyway.
So all in all I'm quite interested in the ideas that pop up in this thread and look forward to seeing more!