Training should be Fluid.
I understand where your thoughts on this are coming from and have always believed that if an idea is useful it will survive the litmus test of time.
On the otherhand an idea that turns out to be a bad one usually gets weeded out in a short amount of time.
Someone wiser than I once said..."Those who fail to learn from history are doomed to repeat its mistakes."
If we are lucky enough to survive these lessons then hopefully we learn something from them and are then able to make corrections which keep us from repeating them.
Thats what I like about M4Carbine....There are so many informed opinions on this forum that if you go into the threads with an open mind and a closed mouth...there is much to be learned without placing oneslf in too much danger.
Anyone stuck on training tactics from the past could very well find themselves at a serious disadvantage in the modern world. On the same score however...there are many tactics that really aren't new persay...they have just had a modern twist put on them.
Because combat itself isn't new...only the tools by which we wage it are...and I intend to learn how to use them as effectively as I can.