Soviet KMS Prime Mover and Firing....

[leonard]

Yorek and Hug, thank you for the perspectives.

I recognize that the general interpretation of the rule is that the transport may either sit in hex and do nothing (while the OTHER unit) unloads,
  or it can drive away.
that seems to be the "accepted" interpretations of the rules.

But.

Transport is a special class....it's actions (unlike almost any other unit type I can think of) involves the actions of another unit....
whether that is a loading inf (1MP) unloading inf (1MP) both moves...... or a loading Weapon(full turn) or unloading weapon(where we are)....

I think a house rule that a transport can fire it's weapons when it is spending the full turn in the hex--whether it is loading or unloading 
seems appropriate---that does not mean it can move--drop and inf and fire---that would be a move activiation...

Why don’t you opt for the Fire & Move optional rule ?