Finally, only over one month late, I have finally fixed the crashing issue and sorted out a rudimentary manual install thing. Even with manual install, the game kept on crashing, and today I found the answer. It was only working on two of the three maps we had (The two that would actually be included) and what follows is the long, excruciating method to resolve the issue.
Delete the player start and add it again.
Anyway, download the game with this BIG LINK
(Click the download button on the site) and PLEASE follow the instructions in the supplied text file, or else your game will be crashing all over the show.