On the loading screen, all text should be outlined. This can be necessary since the loading screen (faction) images are often too light, so that the text is not readable. This is especially bad for loading screen hints. An example which demonstrates this issue is the Egyptian faction loading screen.
Another option is to only outline the loading screen hint, which is not repainted.
Yet another option would be to design new loading screens for Megapack (or to try to modify the existing ones).