Re: Mount & Blade
Definitely a highlight, beating an army with a lot of prisoners, as they automatically join you side. You can also recruit prisoners you have taken, though there's a trick to it - of you try and recruit a single stack of troops at once - for example 10 men at arms - you'll have greater success than if you try and recruit a mixed bunch. Also you need to get them to a fief of yours before nightfall or they start deserting :-)
I noticed that about these in war and - even the steppe has hills. In the original game there was a lot more flat land and the khergs were horrible to fight.