Character design and 3d modelling

Hello, we need 3d art for a zombie game for iOS and Android; we need the following characters: 1) Hero 2) Zombie small size (dog) 3) Zombie normal size 4) Zombie large size 5) Weapons Specs: 1) Models must have a cartoon look (as the attach example) and must be low poly. 2) Hero model must have 5 animations: run, walk, dead, shoot, jump. 3) Zombie models must have 4 animations: run, walk, dead, attack. 4) Weapons: shotgun, machinegun and handgun 5) The 3d models must be in .fbx 6) Is desirable submit a design prior to the 3D modeling If the game sees the light someday I'll add you or your team in the credits.