At a Scenario it allways happens, that a player has disco or does not arrive for other reasons. There are also many unregistered Pilots, who can fit in (mostly from an empty Main-Arena). I want to prohibit such Pilots. Instead I need Volunteers, who are well informed (briefed) and wait on a special channel. They may get a Plane as a Substitute, but they may have to leave without flying. Would you like to do such a job?