I have not adjusted anything mainly because I don't know how.
I upgraded one of the PZ3Ls to a Tiger after it was destroyed and purchased the other one as a core expansion. Don't know if any of that makes a difference. .
The Tigers were assigned new sounds this year but they sound like what I want them to sound like in my working game and the virgin copy I keep for situations like this....now..... they don't sound quite like they used to because the new sound is a recording of the Bovington Tiger moving down a road.... so maybe that's what you are hearing.... you won't hear it in scen53 because scen 53 was built before the change and uses the old default tracked tank sound
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If you find you are constantly reacting to your enemy's tactics instead forcing the enemy to react to yours, you are losing the battle....