Ok, this is meant as a thought, but I think it would be better overall.
Step 1 Get rid of BRs. Tier is enough for this
Step 2: consolidate into three tiers: Bolt actions & “high ttk” smg and lmgs, Semi auto & med ttk, select fire & low ttk. Tech tree requirements change to only 10 complete squads unlocks to start next tier.
Step 3: New Player matchmaking expanded to completion of Tier 1 ( ie 10 complete squads for that faction). Premium and event squads not in tier 1, would prompt that they are not allowed in new player matchmaking and you will play in main matchmaking if these are equipped. This would prompt on purchase before a purchase can go through.
Step 4: T1, T2, T3 now all have different ticket/ Spawn cost to Spawn that squad. Defense would gain ticket count as well equal to offensive tickets plus the tickets they can gain from objective completion/ taking.
This will balance high end stuff as it costs more to use making having squads of different tiers a strategic move as well. This also makes destroying high tier vehicles much more valuable.
The Spawn screen should indicate ticket cost on the squad selection.
While I think the tiers should be plenty, if some items show too powerful another tier could be used as a balance measure etc