hey can someone help me create a map pls i wanna publish it on steam

Map Commision: GM_Park_Extinction

Basically it'd be like this map in the way that it combines multiple locations, it'd be a Jurassic Park map that kinda meshes some locations into one area (Jurassic Park, Isla Sorna, Jurassic World) in more context i want one random island that includes every location used in jurassic park, isla sorna, jurassic world