Thank you very much for giving us such an extensive feedback! We already want to experiment with lower reloading times. We didn't want the player to dash wildly through the level without thinking, but we may have overdone it with the reloading time, true. Thank you for suggesting the Sprite lighting system - we will continue to use the Unreal Engine though. The music is relatively low priority right now, but will definitely be changed and improved.
So far, I have never worked on destructible environments, but the idea is awesome! I think it could have a great synergy with the shotgun mechanic - I will at th every least try to look into it!
Glad you enjoyed our game :)