Air Domination
Air Domination is an tactic best employed on maps with little land or large areas on which land units cannot act. It's simple - build an attack group of aircraft suitable for taking out your targets, and support with units that minimize the weakness of air.
Alternatively, build up a tremendous force of the cheapest effective air units for a task and mass your targets, using shock and awe to augment your activities.
Connections
This tactic is viable in most games with advanced air units and independent air technology, such as AA or XTA. The relative weakness of air units in E&E and Gundam RTS may make this a poor tactical choice despite the access to a variety of aircraft.
Notes
Do not put hundreds of flying units in patrol mode, you'll cause the game to run very slow for everyone and then kicked and hate for life!!!
