Mobile FPS with simple pixelated graphics.

Ignore the budget on this. I have no specific idea when this will be done or how long it will take. Just debate payment with me. This game is a FPS but I am only the designer for maps and weapons. I need someone to help me make a Main Menu and scripts to navigate the game. I also need help developing the FPS Portion. I need a dev that it experiences when it comes to making UI and FPS. I only have 1 map complete so far, and I want to be able to test the game for when it releases for PreAlpha. I also need help setting it up for multiplayer.