Hey yall, i am about 32,000 xp away from tier 50 in the bp and im out of daily and weekly challenges and dont want to miss out on getting the knife, any ways to gain xp faster than the usual amount from unrated?

Is there a way to mute the radio commands the agents say like "I need aid", "Hello" etc. Even just a way to make it text only would be good. People trolling keep spamming them and it's hard to hear. Thanks