That is an issue then. You only have three tiers of play, all of which are shallow. I think you need more tiers to make it work. If I'm being realistic, you may want to redesign all of yor units as they seem to be a Russian faction with no late game. If you are to make it like that, you need to make all of your weapons less expensive and give them an early edge.
They are meant to be a no late game faction.
And they should have an early edge.The flamer squads eat infantry alive,and the AT infantry shreds though light vehicles.
What do you mean by shallow though?Little variety?