Thank you. It is sad that I can't upload my project. Maybe I will upload Multi- and Singleplayer seperate.
20MB is quite a lot of data, do you know what is taking up all the space? Maybe you have a lot of different sound files? Maybe you have lots of large images? Either way, there are ways of compressing your data such that it can fit into a single scenario.
maybe I can convert the sound files. good Idea Builderboy2005.
If they are wave files, that is probably where all the file size is coming from, since wave files take up a lot of space. Mp3 with medium compression can work wonders :)