The Grunt watching as Hank takes the submachine gun from one of the ATP Engineers:

Grunts do not have it good in the series.

Indeed

The ones that don't become/are some important character anyway.

And even then, they still have a rough time later on generally

Fair, but at least they tend to do better than your average Grunt. At least not like the one The Auditor casually killed.

True

But I'm also talking on the moments like the three crushed by a train.

Also true

That are just really unlucky and unfortunate in the universe. Even the Agents are a threat to them, and they practically replaced them as enemies after The Sheriff was gone.