Rename the misleadingly-named AmmoSchemeModel to GameSchemeModel
AmmoSchemeModel was a misleading name, this class was actually used only for game schemes.
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}