This chapter is more about the Garrison than the Survey Corps... It's also very short. I had no access to a computer on the 6th, and very little free time.
Disclaimer: I do not own Shingeki no Kyojin or anything else.
Day 6: the Garrison
It wasn't only the Survey Corps that were getting into the Christmas spirit. The members of the Garrison decided to decorate the walls, since there were no signs of any Titans nearby at the moment anyway. They took a break from playing cards and talking to create some wreaths and other decorations to hang on the walls.
The wall cultists were not pleased with their idea, but they had no real argument to stop them, so the Garrison was able to go ahead with their plan. Once they had sufficient amounts of decorations to cover Wall Rose, they, along with some members of the Survey Corps who wanted to help, began to decorate.
It took an entire day to finish, but the end result was definitely worth it.