I can't find any "support" forums for the game, so this seemed like the most suitable place to post this.
I was at rank 69, with around 1000 points needed to hit 70 and a new specialization. I played a single game, unlocked both the monthly challenge (for 20,000 points) and Pistol Master commendation (7500 points). I rank up, and lost ALL but 1000 points of that as the points apparently don't carry over when hitting the final rank of a specialization. Needless to say I'm pretty angry about that and think it needs changed. I put 100+ games into the monthly challenge for it all to be wasted, not to mention the amount of hours put into the pistol commendation. If it's possible, and the relevant people from 343 read this, I would ask for these points refunded so I can continue to play the game without the constant sense of being screwed. I don't think I can face playing the game again until that happens