looking for these old maps...

[nitrovengE]

https://www.quakewiki.net/archives/jmcstfmapzone/tfczteamdeathmatch.htm

17 buddies is down, please help

[Kuruseida]

Not gonna happen pal.
CoJ FTW

[pizzahut]

TFFF has some, not all of them though.

http://www.filefactory.org/?game=tfc&page=search

Also Google may help:

https://www.google.com/search?q=team+fortress+classic+%22arena0%22
==> https://gamefront.online/files/listing/pub2/Team_Fortress_Classic/
==> https://gamefront.online/files/2758/arena0.zip