VirtualGeo supports the miliray symbology APP6 since version 6.0, and continuously improve its support, adding APP6-C support and some new tactical symbols.
Recently, the APP6 support of VirtualGeo has been used in a wargame at "Ecole de guerre-Terre" in France, see here for more information : Post (in french!). It is a nice example of using VirtualGeo to build ergnomic and business oriented cartographic application.
Integrated into Crimson software, VirtualGeo power the representation of the situation, and gives to user ergonomic tool to interactivly manipulate and create symbols on a custom map.
All these functions (APP6 symbology, creation and editor tools) are integrated in the SDK, and can be added easily in your applications!