Game project

We are looking to a freelance who can do the reesking of the following game i bought this game . [login to view URL] The idea its do the following changes... We need to adapt the game to serve as an activity for the presentation of a cleaning product. Monsters can stay the same. The base in the game, which the monsters attack, must be changed to a car. For the main interface of the game, you need to add a view of the user's arm and the product, in the style of an FPS game. if possible, imitate foam as if it were the shots to eliminate the monsters. The idea is that each player plays a 1 minute round and tries to score the most points during that time. The attacks of the monsters should not stop the game, the game ends at the end of that time. Please only serious people Thanks