CR90 Attacks

"During the Combat phase, the CR90 may perform one attack with its primary weapon and may perform one attack with EACH of its secondary weapons. The CR90 must finish one attack before it begins another [attack]".

I assume these attacks can be performed in any order. As long as I complete an attack before I begin another attack, I could choose to fire a secondary QLC or ST (if equipped), prior to firing my primary weapon...

Thoughts, comments, emotional outbursts?

That is correct. You can fire the weapons in any order as long as you finish one before you fire the next.