Crashes when the running the game from steam or using the ingame mod launcher.
For any user of steam, or anyone who launches the mod from the ingame mod launcher, this is known to cause crashes. This at one time was completely non-functional, and due to the lack of extensive mods never REALLY got tested before crysis became an unsupported game by crytek, so more than likely it is broken. However, launching directly into the mod fixes many crashes. Here are the steps:
For Steam:
Launch steam.
Right click crysis
click properties
click "Set Lauch Options"
type in "-mod mwll"
Click ok and your are good to run the game. Note, this runs the mod every time you play crysis, delete this line to revert to the old game.
For others:
Use the provided launcher