is a single player or multiplayer mode. In multiplayer, two or more humans can combat one another over the Internet. Tactical Engagement mode is where a player can build a mission with a number of customizable parameters, including the target, payload, enemy presence, customization of aircraft, etc. This is also a multiplayer mode. The game includes a useful database including most ground vehicles, aircraft, weapons, and ships that are in the simulation. Each entry is presented with an image and text information on the subject. In game, players can record parts of their flight which can then be reviewed later in the ACMI. Here the fight from any angle or viewpoint can be played, paused, rewound or forwarded through. Also information can be shown on the screen such as turn rate, speed, turn radius, and altitude to help a pilot ascertain where they may be going wrong. Campaign mode Falcon 4.0: Allied Force has a dynamic and customizable campaign. Once a player starts a campaign, the game will begin executing the campaign in real time. Thus, even when the player is not flying, other aircraft, ships, armies and anti-aircraft sites may still be fighting. This is represented to the player in a 2D map where objects can be displayed or hidden. The player can accelerate the campaign to 64X normal time, set up new flights, select weapons load-outs, view target areas and map waypoints before the time arrives for the next mission. The campaign modes take place in the virtual battlefields of Korea and the Balkans, which can be configured based on historical data from 1999, 2005 or from how the area might appear in 2010. Each timeline will automatically change the type of weapons and sophistication of aircraft used in the campaign. The simulation includes the original Korean peninsula battlefield between North and South Korea. Here NATO forces support South Korea in various scenarios that can also involve China supporting North Korea. The campaigns can also be played online. History The game has been patched a number of times since its initial release. The final cumulative update is version 1.0.13. Although the release of Falcon 4.0: Allied Force was meant to raise funds for a new version, dubbed "Falcon 5" to be developed, nothing eventuated from it. In 2011, Lead Pursuit was deregistered as a company. Further development on the original Falcon 4.0 source code has continued under two