You could definitely make the case that TimeSplitters 2 had a deeper, more ambitious, and overall better campaign. I might agree if I could ever get past the first fucking level of it.

Future Perfect is really just one of the most solid, feature-rich console multiplayer shooters of the era that didn't have "Halo" in the title. And the campaign, while definitely taking that hyper-linear, drag-you-by-the-nose approach that became so popular from CoD 4 onwards, is still a pretty solid and enjoyable experience.