Take a look at any of the Women Slaves. Having to carry so much weight. The slave masters talking about "helping themselves" to the new women. Any form of slavery is bad.
Well, I was thinking like, what if there is a class system and reward/punishment system?
Maybe not for Legion but for another slave using society.
A higher class of slave is still a slave but he/she might be treated a lot better and get a way more comfortable assignment.
While a lower class slave is one that has to walk around in the mud carrying tons of equipment and eventually break their back.
So now, if you're a good little dog, and do what your masters tell you to do, and you do a good job, they might take a liking to you and upgrade you in class.
You might get a better assignment or just treated better generally.
While if you're a disobedient little vermin then they will whip you and punch you and forcefully intercourse you and stuff.
With this system you only have yourself to blame if you get treated badly.
Sure you're still a slave and sure slavery is wrong, but if you're a good slave you'll get treated better.
Since we haven't seen a Legion town and only heard "some" of how their slaves are treated generally this is what I would like to see for Legion in a DLC in the future.
We would have slaves that are treated good and those that are treated bad but it's their own fault for being treated bad in the first place.