FaceIT is indeed running 128 tick servers, as seen in one of their demos : GlobalOffensive

Anomaly on CS2 release. : r/GlobalOffensive

Why can't I rank up in CSGO? - Quora

Whats wrong with sync? : r/GlobalOffensive

A few quick ways to balance CS:GO

Has anyone received a random CSGO card drop? : r/GlobalOffensive

How to start CSGO in 128 tick mode without FACEIT or ESEA

Steam Community :: Guide :: Counter-Strike – Hidden Matchmaking and Hitscan Director Revealed

Valve declares war to FACEIT, switching all CS2 servers to the same tick rate

Valve forced 64 tick on community servers. Screenshot from FACEIT demo : r/ GlobalOffensive

Ropz responds to his 64 vs 128 tick test video. : r/GlobalOffensive

Smoke Lineups are different on 128 tick vs 64 tick in CS2 : r/ GlobalOffensive

BillOfOpTic (u/BillOfOpTic) - Reddit