I use 6mm for my games, but it can easily support up to 20mm figures – or maybe even 28mm at a stretch. Each infantry stand or vehicle represents a a platoon and it’s designed for games of battalion sized battlegroups with supporting units. One of the key features are the rules that simulate command – with alternating activations and the possibility of command failure adding to the realism of the game and also providing a challenge to each player on how to use limited command resources. These rules rely on dice chains that can be a bit complicated to get your head around to start with, but are simple enough once you get going and provide an interesting game mechanic.
The other mechanics such as movement and combat also provide a realistic yet easy to understand means to simulate combat. There’s some similarities with dice pool games such as Blitzkrieg Commander – for instance different units or tanks might receive different amounts of d6 to roll – then there’s a target number of hitting on 4+ for example – which is then opposed by the target rolling a dice pool to resist – so very much like Blitzkrieg Commander and other Warmaster style rulesets.
My one criticism is that this book does not come with extensive army lists – but I believe these will be available in a separate volume. You do get stats for the 3 starter missions though for late war UK, US and German forces. The previous edition featured army lists for a wide range of WW2 theatres and armies. The follow on book, Total War includes extensive additional rules and some army lists. However, unlike the 1st edition, only Late War Western European theatre is included – so no Soviets, and no mid or early war stuff, which is a bit disappointing. I am assuming that new supplements will introduce lists for these theatres, but it is a shame that everything isn’t included in one book.
However, despite these gripes Combat HQ is a great system with some innovative rules as well as borrowing some familiar mechanics from other rulesets. For the WW2 wargamer it is well worth getting!
The author, Jim Bambra, has a great website called Wargames Design, which is a great resource.
I have a blog post about a scenario using a version of the Combat HQ rules, Armour Battles here.