Warning: contains spoilers from Guardians of the Galaxy #3 and Guardians of the Galaxy Vol. 3!A new codename for Rocket Raccoon has provided a perfect identity for his MCU future as leader of the new Guardians of the Galaxy. To say that this has been a big year for Rocket is an understatement. Not only was he the main focus of the hit film Guardians of the Galaxy Vol. 3, but the film ended with him becoming the newest leader of the team now that Star-Lord has decided to return to Earth. Now, after a one-year time skip, he's finally returning to the current volume of Marvel's Guardians of the Galaxy series. However, during that time, Rocket has clearly broken away from the main team, taking on a genius new codename.

https://screenrant.com/guardians-galaxy-rocket-raccoon-new-name-groot/