As I was cruising some sites today, I found a site that I stumbled across a few months ago. It's pretty interesting to read, even if its author is critical of periods outside of WW2. The reenacting preference aside, one can easily apply the concepts covered on the site to any period.
The only thing I don't like are the rules and leeway for snipers, which I think are useless in any arrangement that cannot effectively tally a "kill". It seems that some of the rules, although well written, were penned by a reenactor who does this impression. Do everyone a favor, return to the ranks and play on the team. Snipers are more problematic than useful.