Carl, after watching that video I have some concerns. First, is this an IR or airsoft tank? Next, I see in the video and the photos that you don't have the trigger switch plugged in. You won't know for sure if the atrc works until you try it with that plugged in. The way it is in the photos and video, you won't get track recoil, but that's because your trigger switch isn't plugged in. Since I'm not familiar with that sound board I'm not sure why you're getting cannon sound without having the trigger switch plugged in, though. All I can say is that I won't be truly satisfied the atrc works until I see the tank all buttoned up and firing, so I hope you'll post more video when it's all buttoned up and out in the field.
And did you see that video about how to put your video right in your post instead of having a link? Someone else was asking about that, too. This might help, and my apologies if you didn't need it.
And I'm going to put your video here, just so I can reference it without leaving the page.
Great sounds, BTW. The new Taigen electronics are supposed to have proportional turret rotation speed, so with sounds that good one might not need to upgrade any further. Especially since the new TG stuff can be connected to the radio of your choice. If the new TG sound boards aren't what they should be I might bug you to teach me more about the one you're using. It sounds great.
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