Use a fixed message shape
Call the module, position, and value in that order: “dial left, three.” The acting player repeats it, and the source confirms. Use a unique cancellation word such as “hold” so it cannot be mistaken for a value. Only one person should issue an instruction at a time.
Respect role limitations
Do not build a strategy that silently removes the intended restriction. Instead, agree on concise gestures, text patterns, or in-game tools that the current role can use. Run a microphone and volume check before matchmaking, and keep a fallback channel available for connection troubleshooting rather than puzzle leakage.