Didn't find valve servers when searching for them.

I used the server browser and the multiplayer button for gun mettle.

One gave me a "Railbait" server and the other gave me a server with custom sounds on it.

Pretty sure valve servers aren't modded. Eh, i'll just join friends if i find them on one i guess...

Check your settings, you might have it looking for any server. Then again, the Valve servers have been pretty... off... since the update.

Good luck with any contracts, you might need it.