That makes me think we could potentially have a mortar carrier.
Something like this :
Or is it too evil ?
Also i'd love to get to see one day some modified german halftrack with an antitank gun (251/9 or 251/22) or something since we already have a sdkfz 251/10 that shoots paper pellets.
If a motivated dev sees this, take it as a suggestion, hopefully it shouldn't be too hard to create new vehicles with existing ones or at least I hope.