Well, I learnt something. I am the most active person out of the 8 other people with Fergus in their name. Suppose I have to stick with this name unless he decides to remove it.
The reason why I don't stick to my Police name, E.G SPC Fergus is because it has a certain day until I can change it, and then if I get promoted a few days before, I have to stay as SPC! .
Thanks for your help buddy! @Brick