In the early stages of the Campaign the Soviets are getting armor reinforcements that have T-60 tanks in the TOE. But T-60's are not even being manufactured yet. Do these units ever do a downgrade to another available tank?
21.2.7. Ground Element Upgrade/
Downgrade and Swaps
Ground elements may change to different ground elements
of the same or a different type during the ground element
segment of the player’s logistics phase. In the upgrade subsegment, the ground element may upgrade in accordance
with its upgrade path as listed in the ground element detail
window (37.6) and the city production list window (37.13).
It may also downgrade to older equipment if this will fulfil
its TOE needs. Many upgrades will remain within the same
ground element type (e.g. Rifle Squad, Medium Tank,
Heavy Artillery, etc.), but some will result in a change of
type such as maybe using a Light Tank Destroyer in place
of a Light Tank.
In the swap sub-segment, the computer may change
out existing ground elements with ground elements of
the same type, but not necessarily along the upgrade/
downgrade path, though priority will be given to newer
equipment. For example, a Panzer IVg is a medium tank
ground element, which upgrades to the Panzer IVh and
downgrades to the Panzer IVf2. In the swap sub-segment,
however, Panzer IVg ground elements may be changed
out to another medium tank, such as a Panzer IIIj L/60,
depending on the available.