Fire and Movement is primarily a magazine of reviews. It has done very well at this since there are so many new games coming out. It's well worth reading if you want to get a better idea of what some of the games coming out are like. It alone among all of the other wargame publications is devoted solely to Avalon Hill games. Most of the articles have to do with tactics, variants, additional scenarios and the play of Avalon Hill games.
Moves is the magazine of gaming theory and technique.
It covers all games in the hobby and has articles of opinion, theory, technique, reviews. Simulations Online Magazine. If you are a modem junkie, you should be able to find it. Lots of good stuff for the wargamer, Run 5. Carries material on SSGs own computer wargames.