[Actuarian]

I agree dismiss would be nice. You shouldn't have to creatively kill your own troops to 'retire' them.

I do have to say that I have very seldom wanted to dismiss troops. Even the low level random event troops make good chaff for armies or for individual spell casters, asumming they are generated reasonably near the front.

Regarding the behemot, they aren't great, but I wouldn't say they are useless. If I remember correctly you can transfer them to another weaker death mage, and you can have more than one commanded by a single mage. If you have the time to get a decent sized group of them they can cause some significant trample damage.