How so? If it takes an extra 10 mins for an IS2 to arrive then P4's will own the battlefield.
Likewise with T34's and Tigers. Delaying them means stock tanks will have a bigger window to get vet and to push advantages.
First, i wanted to say commanders on my original post (see edit). It won´t make underused commanders more popular neither stock unit more effective. Hence, people will still rely on Call in tanks.
People are just gonna tech T3476 and then callins, on the other hand, people will just get P4 and then Tigers.
People will still spam E8 due to to teching design of the faction (even if you attach call ins to Tier). It´s not as expensive to get a major, plus the unit has its advantages.
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Reference:
-BP1 200mp 45f
-BP2 200mp 55f
-T1 80mp 10f
-T2 120mp 15f
-T3 160mp 25f
You don´t have to get into consideration some cost since there are things that you are oblied to get on both factions.
You need BP1 for LMGs and RNades. Also for getting T2 (unless you want to skip it and get a "quick" T3 (it was plausible before the teching timing changes).
Either you wanted or not, you are forced to get this things earlier or later.
Real tech cost for getting a P4
-BP2 + T3 = 360mp + 80f
Why am i using this price? Because it´s not realistic on playing without T1+T2 and BP1 is not optional.
On the other hand is not like the USF isn´t gonna get something like Bars, Nades, Ambulance, T2/T3/T4.
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Stalling for Tiger: you save 360mp + 80f + P4 cost = 710mp + 205f
710mp + 205f =/= 910mp + 250f
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Edit: i see that you realize the prices. Yeah, while teching vs call ins is a COMPLETE DIFFERENT issue, theres has to be some tweaking on the teching cost of OH.