Matt Fritz has these free wargames rules for gaming the Battle of Midway. The rules are designed for 1/700 ship and airplanes models but Matt also provides paper counters and airplanes.
Rules: WWII
Crossfire Hit Chances
The Small Cuts website has an article on the percentage to hit chances in Arty Conliffe’s Crossfire. Crossfire, as you may know, is one of the more innovative rules sets to come along. It uses no rulers, and has no real turn sequence.
Crossfire House Rules
Crossfire is one of the more innovative — and more enjoyable miniatures games I’ve played. But everyone who plays it seems to have their own house rules. Tim Marshall has a set of house rules that have to be the most comprehensive I’ve seen.
Fast Play D-Day Rules
The theme of Historicon 2004 is “D-Day and the Liberation of Europe.” If you’re not going, you can still be there in spirit by playing this set of Fast Play D-Day free wargames rules. Author Matt Fritz also provides paper soldiers, landing craft and bunkers. It’s everything you need for a quick D-Day game.
Airland War Rules
Airland War is the successor to Steve Lorenz’ successful, commercially published Panzer War miniatures wargames rules. The rules simulate modern warfare using microarmor miniatures. You can now get Airland War as a free download.