I think it might have been more exciting if, the Captain
had shouted the following commands, much like David
Hedison of Seaview did in "Voyage To The Bottom of
The Sea" decades ago.
I remember, as a kid then, these were the moments that I
really looked forward to in the TV movie.
"Fire One !" (or two, three, etc) instead of "Firing Tube One"
"Blow All Tanks !" rather than "Blow Ballast!"
"Dive! Dive! Dive!" instead of "Crash Dive!"