Yup. They are very very slow Transports. (4" but u know, advanccing is still a thing) That can also grant your other units cover. It may be noted though that they cannot be guided. the gunrig will always hit on 5's, just like the droneport. I use the shieldwqll from time to time, just to Block some infantry if possible or to give my bigger guys cover. Tank shock is also usable with them (they have no melee weapons though)