As zeddb said so well, if the BA command aspect is a dealbreaker then don't join. The last time I checked GSS was flying exclusively for BA World Cargo. The deal for BA is they can effectively outsource their own cargo flying if they give their own crew a shot at 50% of the command positions. If you get rid of the BA command option then you also get rid of the GSS command option as the flying has to go back in-house at BA, or more realistically BA World Cargo withdraw from the dedicated freighter operation and go back to buying space on other operators aircraft. You may find the long time to command distasteful but it's a necessity of the operations existence.