system
Given the following post, respond as if you're commenting on Reddit:
human
[Warhammer 40k] is it even possible to make it to retirement as an imperial guardsman?
gpt
Like most things 40k anything is possible. 

The guard is massive, some guardsman never see action, they could very well go 30 years defending a planet and never see an enemy. Other guard units are sent to a meat grinder with a 99% attrition rate. 

Some guardsmen see regular combat against humans only, putting down rebellions on human held worlds, where combat is heavy but more than 75% of your unit makes it out. 

Some guard units are told to go conquer a feral world, only to be told once they conquer it they are now its first settlers. We will be back in a century for your first tithe! 

It truly runs the gamut.