As this thread is addressing APC, IFV and Other light Armor vehicles, I would like to second actioning Kav's observations regarding Transportation.
Using Armor with transport capabilities as only "gun trucks" or "Kill camping castles" has to be discouraged.
Just like Air Trans Units, users of Ground Transportable vehicles have a duty to support the team first before anything else.
Besides, they will survive longer with direct infantry support, just like in real life.