I believe that with an hour's time in sandbox mode that you can create pretty unique maps, practice enough with slowly chipping away as land mass and you can have roads houses walls and etc, not the best but they for once have a likeness that doesn't require Walt Disney making a cartoon out of it to make it look nice. I am personally creating a swampy scout camp map currently, for early gunpowder age army builds. Pretty much just for personal fun really, not based around the online MP army builds. As a defnender you have maybe a place more for missile units if you learn the art of not pushing your own men off of walls moving them around. I've also simulated a small "rule list", for making sieges and etc easier. Such as simulating ladders or etc.