[DiogenesLamp]

The draft does promote volunteers. If drafted, you have no choice of unit assignments. If a New Yorker volunteered, he could pick a New York Regiment to serve in. The same was true in the Confederate service. Draftees and enlistees in the U.S. Army were assigned to units by the War Department

So the numbers about "volunteers" and "drafted" don't really paint a clear picture.

I know that if I was going to get drafted, I would try to volunteer and get into whatever MOS or Unit I preferred rather than let someone else pick for me.

I assume draftees tended to be cannon fodder.

[Bull Snipe]

In both the Union and Confederate Armies, draftees went to infantry regiments.