Which is why I said that the price of the Zook should be drastically reduced as it's currently not worth the cost, and said that Shreks should have lower damage but get a better rate of fire, that way you can't just 1 shot a Sherman but they will still remain useful in drawn out battles. If you want to put the Zook and the Shrek on equal levels then they should cost the same and both be available to any infantry unit who wants them.
The way Stormtroopers works is actually quite cool in my opinion, sure they suck as a unit but I think all units should have a selection when it comes to upgrades making you pick and choose, rather than having just 1 you always default to.
No weapon racks are a core design of the USF. Shreks shouldnt be allowed on all platforms. Unless of course all of a sudden Zooks can teleport into the hands of any USF unit as well as BARs etc.
Lower damage is fine for shreks. But lower accuracy would be needed too if you want true balance. The platform that gets shreks is more durable to supporting AI infantry, cheaper, and more accurate.
Even if Zooks were say all of a sudden BETTER outright then Shreks by a small margin the impact would still be less considering the overall factions (Axis better armor/HPs on average and access to Heavy tanks etc etc)
Either way in the current game Shreks are too effective and Bazookas even if they were stupidly cheap I would never put them on Rifles.
Making the Cheaper wouldnt make them very useful. They would just be an upgrade to REs. Try to get two Zooks on a Rifle squad and try to take on a P4 or Ostwind and see what happens. They are only really useful against Panthers and Stugs. Light vehicles are too hard to hit without Volks level accuracy bonuses and the AI on Ostheer mediums and the retaliative weak DPS of Zooks makes Ostheer mediums deadly against a frontal Zook Charge.
There would be situational uses for them like killing something thats seriously damaged but they will never have the impact of what Shreks enjoy currently without a significant buff.
Edit: And when I say useful against Panthers I mean they can cause damage and give Rifles vet. Not that they would ever really destroy the Panther unless it was already down to almost no health or the player was brain dead.