Also you don't have to stop short with just FF or TFC.
You could always check out avis from the quake side of fortress. (inferior as the sub-genre may be)
Unyielding is a fantastically crafted work of art for ETF:
There's a handful of other ETF videos that are pretty cool too. You could likely find them in the videos youtube suggests on Unyieldings watch page, or by searching for enemy territory fortress.
Or you could go hella old school and watch some videos from the actual birth of the TF genre:
(god the quake genre of TF is goofy enough, but in some ways qwtf is exceptionally goofy)
(also did tf done extreme 2, like, conceptualize the whole "commentator voice-over in the middle of an avi" thing? Because that's kind of a thing people do now. So goofy.)
Maybe if you searched hard enough you could find some other obscure TF montages, like Q3TF and shit. I've seen some weird ass TF related shit. Unreal fortress? Was that real, or a fever dream?