I'm not sure about the rest of the country, but out here on the Wet Coast, we can't dig in anymore (except shell scrapes). Not in Chilliwack, anyhow. Our days of exs in Ft Lewis are long gone (9/11), which is a huge blow......huge training area and dig in anywhere you want.
Pitty really. When I first joined we dug in to some extent every ex for 3 years. I hated it at the time, but I now see the necessity as we have CORPORALS who haven't dug in to stage 6 (or whatever they call it now) since basic 3,4, or even 5 years ago! There's something basically wrong with that.
As for e-tools, I hate the little buggers, but they work. Obviously full size tools are better, but equally obvious, in a real situation they may be unavailable. But I guess in a real situation, if I was told to dig in against a formidable enemy, I'd use my teeth if I had to, so the e-tool serves it's purpose rather well, IMHO.
I just saw your post Infanteer.....agreed.