Forum:KB:RC-1138's real designation

Hey all. So, on wookiepedia RC-1138's designation is just that: RC-1138. And that's it. However, in the intro cinematic in the game Star Wars: Republic Commando, the very first thing said to him is, "Welcome little one. This is your first day. Your designation will be RP 01/138. We expect great things from you." So which is correct? Or did it change? And if it did, then why did the 01/138 change into 1138? User:mdrew93