1. To exclude heavy weapons companies from the “foot soldier” category shows an inadequate understanding of infantry organization.
2. The weapons platoons in the rifle companies don’t count either?
3. Engineer units rarely engaged the enemy.
4. Why did you leave out the 6 infantry divisions in the Mediterranean Theater on V-E Day?
5. The 144 rifle platoons in the armored divisions don’t count?
I don’t believe your statement that combat engineers rarely engaged the enemy is correct. They often were behind the front lines repairing bridges, roads etc. but were often involved in assault crossings of rivers.
Also in retreat, combat engineers were often left behind to try and stop the enemy by blowing bridges etc. after the rest of the army had crossed.