For tanks, you need to determine the turret weight when designing the base design.
when later you mount weapons in the turret that would result in a lighter turret, the turret should still have the original weight. we currently do not track that for the verifier.
This issue affects the validation of the Ajax C, IIRC.
Fixed in [7bbaa1]. I added two new state variables to Tank, baseChassisTurretWeight and baseChassisTurret2Weight, which can be used to track the base chassis weight for turrets. This state can get read from and written to a BLK file.
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Commit: [7bbaa1]