Hi @Gianky just click on the red shield in the multiplayer selection window:
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We can test the patch in the Enigma Cold War Server as it doesn't require Pure Clients.
I did a test before and I was able to taxi and takeoff. I will do other tests with different payloads. I'll be on the server for the next 30 mins, airbase Sochi. Feel free to join to test. I'm available in SRS to chat if we don't bother other active players.