Firstly I want to say the details of this post are not meant to be taken to heart and I am open to changing any variables or aspects of this suggestion in order to improve the effectiveness of the desired changes.
Currently in HLL infantry squads are composed of 6 units with so many class options that a squad can consist of no players using their factions standard infantry rifle.
I propose a set of changes to improve squad dynamics, improve the importance of the classes, and improve team play
Firstly, increase the size of the squads, this could be done to match what a faction had historically or could be standardized to 9 if the devs are concerned about balancing between factions.
Secondly, add more specialized squad types. These squads are equipped with weapons/equipment/vehicles that other squads do not have access to or do not have in large numbers, and in most(if not all) cases will have smaller squad sizes than regular infantry squads.
Examples of such could include: mortar squads, machine gunner squads, anti tank squad, logistics/engineer squad, Mechanized infantry squad(would have access to offensive light vehicles and could support tanks better than regular infantry (pls pls pls🥺🥺🥺🥺)).
All of these squads ideally would excel ONLY within in their specialty.
This could really be fleshed out with many squad types if the devs wanted but I think keeping it a little more minimal will allow for these squad types to remain important without making them useless or overpowered.
These squads would heavily limit what classes you can use, for example: Infantry squads would be the standard size for their faction and would only have access to SL/rifleman/assault/mg/support/medic.