I decided to try out Dead Island's co-op mode. Unfortunately, there seems to be no way to turn off voicechat and I can't find any push to talk option. I don't want to just unplug my microphone because I want to be able to chat with my friends using Mumble or some other external program.
I can't seem to find any option in the audio configuration file to turn off voicechat or change it to push to talk. Is there any way to do this or do I need to wait for a patch?