Slitherine

When on purchase screen after buying a towed oniy unit have the transport units below flash or something to remind player to purchase transport. Even in Panzer Corp I noted that when upgrading artillery that transport can be lost. Then after deployment you lose two turns or more by one-sqauring the transport-less unit to an objective to add transport!
There should be a reminder when reinforcing units to be given option of reinforcing ONLY OR upgrading FIRST, THEN reinforcing. This remains confusing.
Maybe you need a popup screen here to avoid the confusion. Us PanzerCorpers are used to rapid clicking that reinforcement button then upgrading.