Soviet KMS Prime Mover and Firing....

[cjsiam]

5.67 discusses transports being able to fire while loaded....

5.63 discusses weapons units which start their turn loaded/limbered may spend a Move Activation--the full turn and unload/unlimber....
and the transport may move or load another unit....

So---if my KMS is dropping the loaded/limbered AT gun----can it fire it's hearty 2-4 MGs at the neighboring hex?
I can move....so can I fire?

I'm not seeing why not---the KMS is effectively "absolved" of having to spend activation time with the unloading AT gun...so
if it can move---can it not Fire instead?

inquiring minds....
cj