Adding aces is a very difficult process. Getting aces into other squadrons is fairly straight forward and, in fact, is done. Dealing with all of the things that have to happen when an ace is in your squadron gets very complex. They have to replace an AI squadron mate but use very different logic. Working on it again.
Doolittle Raider: the text of a has the following limitations: 1. It must be between the quotes 2. It must be before the semi-colon 3. it must be on one line.
Beyond that it is a Java string and not of fixed length.