As of this moment, we still do not have a load remover script for LiveSplit. It should be made sometime soon though. That is why we time our runs in real time, and after the run, manually subtract the loading screen times.

To do that you can either use a recent log file located in \Crysis Warhead\LogBackups - just sum up the level loading times and subtract that from your run time. Don't forget to exclude the first level, since you start the timer after the first level's loading screen.

You can also use your video of the run to do the same.