Little trick for downloading the upcoming TTS for people with slow download speed (Uplay!/Steam?) : r/Rainbow6TTS
Steam Community :: Tom Clancy's Rainbow Six Siege - Test Server
Test Server FAQ
How to install rainbow six siege test server
Y6S3.3 patch coming to test server Oct. 6: Castle, Clash, Kapkan changes, P10 RONI nerf — SiegeGG
Rainbow Six Siege Grim Sky is live on test servers – here are the patch notes | PCGamesN
Rainbow Six Siege Test Server Removes Cross-Chat To Combat Toxicity
Rainbow Six Siege High Calibre patch notes - Meet Thorn, the latest Defender | WePC
Rainbow Six Siege on Twitter: "🛠️Y5S1 Test Server Patch🛠️ The Y5S1 patch will be deployed to the Test Server today, 17th February. Platform: PC Only Time: 13:30 EST / 18:30 UTC Full