2 things I wanted to make note of from plyaying the Alpha, 1.) the sliding mechanism could be just a bit longer. I don't feel like I get very far when I try to slide for cover. 2.) there's a boss (name: Naksis, Devil Baron) who doesn't die or fade or even leave upon defeat sometimes. He just kinda chills there by the wall and looks at you with a little regenerating block of health.