German    AFVs


alb - First number is track armor. Second is hull armor plus track armor.  Possible to have both track and hull penetrated.  Dice for damage one time.

s40  = Spaced armor bases -  Armor value vs HEAT/HESH rounds. 
28  = High slope indicator vs APDSX / HVAP rounds, i.e. deflection.  Add +1 to the variable penetration die.   

c = Low profile cupola - only 10 backed by another 10 scores a hit.