I apologise for double posting. I just saw that several other new threads had already received replies, whereas mine hadn't; I was simply worried that my question wouldn't be seen once it came off the front page yesterday. I will heed your advice.
Thank you for your reply. Unfortunately, it doesn't answer my question. Maybe I wasn't clear enough when writing my first post, but I already did that and it doesn't seem to have done anything. I'm actually a little unsure as to what they are. I assumed these were characters that you could play in-game, like presets, but maybe they're just models for use in the map maker...
Anyway, the thing I'm confused about is adding coding to my object files. Like I said, every other tutorial I've looked at for downloading meshes doesn't involve that.