When does a unit go "under" an entrenchment?

[saracv3]

But one thing to take into account is that we’re not talking about just one guy jumping into a trench. I am picturing a platoon of guys moving into the trench, what with a semblance of organization and various types of equipment inside and outside Of the trench.

What if a bunch of guys jump on top of an artillery position or AFVs or APCs? Or what if an AFV, APC or dragged (A bit daunting in real combat) artillery unit.

I like Peter’s artwork for the1898 counters. Thinking of 2 rated MPs for yesteryear’s soldier: Of coarse people in 1898 moved slower because they were shorter (like TR) and out of shape (except TR, who probably carried an inhaler) unlike the svelte wargamer of today.