Challenger II: Ultra Modern (miniature) wargames rules For battle group level games 1950-1995These rules I hope balance playability with the complexity of modern warfare and cover the use of most of the weapon systems in use or likely to be used in the next decade. The sequence of play is designed to give a fully integrated move and fire system between the players and highlights the advantages and disadvantages of Anti-Tank Guided Weapons. The system is akin to many boardgames and once learned flows as quickly as any alternate move system. This second edition highlights the increasing use of sophisticated fire control systems as well as other electronic aids on the battlefield, the use of many of which are covered by optional rules. The main difference from the first edition is in the handling of armour penetration, with the increasing use of composite and active armours. Each armour factor on a vehicle is still 25mm of actual armoured effectiveness at QO slope being taken into account in the thickness, but a 0 factor now represents armour upto about 15mm on light vehicles. The penetration value of weapons is however nearer their true value and a new set of penetration tables and effectiveness charts are used. HESH or HEP are not the super round that it appears in some rules, it has a maximum effective engagement range of 800m, after that you need to start lobbing it using the direct area fire rules. Modern infantry fire stresses volume rather than accuracy and I have therefore considered it a form of area fire and combined it on the same effects table as artillery. In this edition I have also taken the opportunity to reduce the infantry scale to that of a section as was done with the companion Firefly WWII rules. Helicopters are treated as very fast vehicles and are highly effective but fragile anti-tank vehicles, the full range of their capabilities are covered. Aircraft are an important part of the modern battlefield, but I have limited their impact on the game to direct support of ground elements, although with an increased effectiveness over the first edition. - BoardGameGeek