Echoes of the past (My best game yet)

Hey Everyone, so I have build this game in just over a month. I'd say this is my best game yet. Its been a long road getting to this point in my development en devour. But here we are. Echoes of the past. You take on the role of Special Agent Houston. You are tasked with finding the reason behind the sinister outbreak and to stop it from spreading to the end of the world. Instead of bullets, you are given an energy weapon that will regenerate energy after a short time. Created in Unity Engine 3D, you are given the choice between 3 different difficulties each increasing the intensity of the game. The controls are displayed as part of the HUD. The zombies have a chance to either follow you via Walking or Running, which ever it decides to do. There is also a giant mutated monster that you will have to figure out how to kill. Just follow the In-Game Objectives and the objective icon on your minimap and you'll just fine. Also this is a standalone build so no installation required. Just Launch And Play... I'm just looking for feedback. So please comment what you think. With the incredible voice work and amazing sound effect, You are sure to be amazed by this INDEPENDENT MASTERPIECE!!!! You are given the ability to select First Or Third Person Mode (I think First Person Is Way Better lol But that's just me. Please try it out and ENJOY!!!!