Folks, my friend has a server where some players are changing their models to custom ones, such as having ct models with red heads,making them easier to spot and kill. I believe this could be considered a hack, even though valve allows it. Does anyone know of a way to block this ? I've been looking into some amxmodx commands like md5_file, which verifies the file's checksum, but I'm not sure if it's reliable. Does anyone have any ideas?