For the command teams that is the way to go, but you have to remember that the rest of the crew may not be on TS. So havin each squad on a different VOX would improve communication for the scenario.
Thats why I assign every squad their own vox channels for every scenario I run.
For example.
Squad vox assignments are as fallowed.
HQ P40E - Toxin = Vox 156
RECON A20G - Hawkeye = Vox 120
RAF Sqdn Spit I – Rabbit = Vox 101
AVG Sqdn P40B – Panda Blue = Vox 141
AVG Sqdn P40E – Panda Red = Vox 140
RAAF Sqdn F4F-3 (FM2) – Boomer 1 Vox 142
2nd RAAF Sqdn F4F-3 (FM2) – Boomer 2 Vox 143
RAF Sqdn Hurri I – Angel 1 Vox = 130
2nd RAF Sqdn Hurri I – Angel 2 Vox 131