Well, I definitely won't be looking for it for you.
I don't understand what the difficulty is in finding it. You have scripts that work differently in single-player and multiplayer, isn't it difficult to find such a sequence of commands in them, and then emulate the same structure, but without game actions? Apparently, the way threads are handled differs in these modes.
A function has two sides: either the game crashes, or it doesn't. How are you going to check for "game crash"? Are there timer functions, and does it work differently on different computers?
