I put the game in to Xbox Live play testing with little expectations especially as it is such an early version.
What I got back was incredible. I knew the way others look at the game would be different to how I see it, with the 'rose tinted glasses' of the developer on but I was not expecting such useful feedback.
After the initial essential bug fix, many of the comments are about balancing the combat. I got feedback on AI behaviour, the relative strengths of the weapons and even some suggestions for the bullet effect via Twitter. I also got some useful comments, with screen shots, on projectile behaviour which I knew about but did not expect others to notice. I know now that if I know about it chances are others will also find it distracting.
I have already fixed or changed many of the things based on the suggestions and just have the more time consuming ones to go. Some changes have hit performance so I am in the process of moving things about to get a few more milliseconds out of the CPU... I hope!
Thanks again to all.