Basically, yes.
Right now they are an experiment using an unused vehicle class in the Green OOB so they have no speed and a crew of one. They can "hold" up to 254 so about the same as a Landing craft...so you could hide a tank in one ( there may be adjustments... )
Because they are "vehicles" ( as are the grounded aircraft ) they can be positioned facing in any direction but once the scenario starts they would remain fixed as placed. I could add them to as buildings but we would not want them being placed by the AI so for limited scenario usage using them not unlike the grounded aircraft would be the best option.
Testing beyond placing has not been done.....as a vehicle with no armour they would be easy to "kill" and would burn like a truck would but they are tents and you wouldn't want to be in one when someone is hosing them down with MG fire.
*IF* I do leave them in they would be simply something a scenario designer could use ....so rarely but still handy to have for limited use
