He did the music for zOMG!, which for a game in which you kill animated plungers with jewelry, has some really cool music. this theme is a particularly epic example, though there are many others, such as the "Village Green (Gnome Man's Land)" theme, and the "Barton Sewers/Undersea Cliffs" theme.) Keep in mind this is music playing while you beat up Lawn Gnomes and Sand Castles. Doesn't make it any less awesome though. This song in particular, which plays during the endboss battle with Labtech X and his Sealab X.
Soule's also the main composer for The Elder Scrolls series, starting from Morrowind. And yes, his work in those games is awesome, too. The Skyrim theme would be the most triumphant example. Its creation started when Todd Howard told Soule that he imagined a viking choir singing the Elder Scrolls theme.
In Guild Wars 2, the awesome level gets considerably bumped up from its predecessor. Almost the entire soundtrack is CMOA, but a special mention goes to the main theme, heard in the manifesto trailer. Good and gracious God, that theme is absolutely incredible; Jeremy really pulls out all the stops for Arenanet. It's no wonder that the fans were so happy when it was announced that he was returning to compose the soundtrack.
Total Annihilation is an embarrassment of riches. (Try a few different tracks. Some of them, e.g. "Futile Attempt", are slow and haunting. Others, such as "The March Unto Death", "Fire and Ice", and "Brutal Battle" are war music if ever there was.)