Back banners for squads

[Blissful Brushes]

Howdy one and all!

 

I’m having a bit of a dilemma about back banners for my Luna Wolves.

 

I’m making a mechanised force - combo of sicarans and razorback/rhino mounted infantry. My squads are organised into platoons of 6 squads of 6, with one of those squads being the command squad.

 

I had originally envisioned just the command squad having a back banner, representing the platoon but realistically I’m probably not going to get more than 2 platoons at the rate I model and paint so I was pondering switching to having a back banner for each 6 man squad and something a little bit more substantial for the command squad. 
 

What do people think? Part of me think 5 back banners and something handheld for  36 marines seems a bit flashy/much but the flip side is that there’s going to be a lot of vehicles which might drown out the infantry a little bit. 
 

This is the crew so far (yes I use primaris, don’t judge me I just like the proportions a bit more and I greenstuff them back to HH as best I can)