For the final Bourne installment, Powell naturally went with the basics of Bourne music, but manages here to flesh them out, giving his themes more room to breathe, and even a little more underlying orchestration. The CD plays out like a memo to Powell from Hans Zimmer, suggesting a few "epic" notes and additions to themes from time to time. This score doesn't have the tense "togetherness" of the previous scores, and certainly isn't as enjoyable as Supremacy (which is still the best of the three). The music has a tendency to blend a little into the background, but it's still a great soundtrack.
A couple of tracks that stand out are "Man vs. Man" and "Tangiers". "Waterloo" is good, but a bit long and incoherent.
Two things stand out however with regards to criticism of the CD: 1) the tracks are all out of order, and 2) at least a good third of Ultimatum uses score pieces from the previous two Bourne films (notably "The Apartment" from Identity and "Bim Bam Smash" from Supremacy, easily inserted in the appropriate places, once you figure out the order.) I'm also not crazy about the "Extreme Ways" redux, but that's just my opinion. I like the original mix a little better.