Both easy. It kinda sucks not needing anymore XP to rank up now. I find my desire to go for challenges is gone. I wish it were made harder to rank up in Halo 4. Reaching max rank in 40 days from release while fast, kinda sucked some of the fun out of it.
It would be great if there were more ranks coming…Then I’d have something MORE to play for. Still, I love going for commendations, so it’s all good.