FPS zombie game in Unity with excellent graphic

We are creating a first person shooter zombie game. This game is made in unity; I have a couple of kits that need to be combined into one project. So I will send you a folder containing all the assets for the project, then everything needs to be combined into one. There needs to be 2 scenes created in unity: one scene is the game’s main menu, and the second scene will be the game itself. In this game there will need to be a few major key game mechanics; this game will be in first person, there will be a health system(a health bar), an inventory system(some type of menu will be used for this), item pickups, weapon upgrade system, a driving mechanic, and a sort of pause menu map that will show the player there current location in the game world. The files that I will send contain a complete first person shooter kit, a complete kit of a car with driving mechanics, and a second fps kit that contains basic zombies with animations(use the zombies+animations as the enemies in the project). A couple of different gun models will have to be added into the game and plugged into the first person shooter kit. Also there will have to be some animations created for the game as well. For example when the player comes to a small wall, they can hit the jump button next to that wall and there will be an animation for the player climbing over that wall. About the item pickups: when the player comes into a certain range of items that are pickups (ammo boxes, food, medkits, other weapons, etc.) the item will be outlined in a defined color with a GUI that will say something along the lines of “take item”. There has to be some sort of AI path were the zombies will try to fallow the player into buildings, but if the building is closed, then they will go to certain windows/openings. In these openings and windows, the player will be able to board them up, which will make it so zombies can’t get in. We need someone who will be available to work on this for a while, for example we will need more game components to come. Also we will discuss more in depth all the details once you are hired.