Wow, three answers in not much more than 3 minutes! Thanx guys! Its all very helpful.
Im not sure if walking would have worked, I would have thot the small arms fire should affect inf more than HT although I agree with you on larger MG's etc. Also the scenario is heavy snow and extreme cold and my troops fatigue when they scratch their ears, let alone advance, hence the need for HT's or other transport. Im not sure I buttoned the HT's, i dont think I did and I should have. I wondered if the "move" command would have worked better than "fast"? I did have some overwatch with a couple of recons and a tank or two but I could have done with more, also knocking out a bit more opposition and perhaps a little more smoke. Where is the thread on HT's you are referring too junk2drive?
Thanks again everybody. This is my first posting after being an avid player and lurker for a couple of years.