Flamethrower & Rocket launcher not functioning

[Sandman55]

Hi,

Noob to the Game so getting to know it by playing the second skirmish scenario again & again.
I have several problems that I could not find the answers to here or in the Manual:

Flamethrower troops - aimed them at troops, buildings tanks - they do not fire, just stay there until dead.

Calliope- I cannot get it to use the rockets.

So what am I not doing or doing wrong?

Thanks in advance for any help