thank you for the feedback. i tried repro-ing the bug you said you got, but i could not repro it. could you give me more details, step by step, please?
as for difficulty and spawn rush, yes, that's a problem with the AI now. I will have to fix it since it's not a good user experience.
I'm on Chrome, but on MacOS and holding Ctrl (external keyboard) doesn't seem to trigger the issue you described.