Thanks! You have any thought on the rest? All the feedback would really help
I listened to track 3v1 and v4 just to see the progress and I can definitely see the improvement. I don't exactly know how to describe it, but I feel like a high pitch 'oooh' like in the halo or in COD3 zombies' themes would be nice as a background sound.
I'm sure I described it poorly so ask any questions you need.