Since I've published the bonus chapters in Redemption, aka. Rudy's letters, I will give you a fun fact now to make it even more bitter.
Okay so generally, when I was writing the letters, I noticed that it got longer everytime from Soap's until Price's, and as the deep thinker myself, I imagined Rudy got more comfortable and vulnerable with his words on each letter, where he had so much to say but couldn't, and when it got to Price, everything just overflowed and managed to write so many things.
Basically, after Soap's letter, Rudy wrote longer letters for the rest since every letter prior, gave him motivation to write his heart out to the team.
P.S. Gaz was supposed to be the shortest, but I was shocked myself that I wrote too many words for him when it literally said in his letter, that Rudy and him barely talk