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I fulfilled the requirement to upgrade my tanks hull to an M2 and waited for the required time. I can see a "buy M2 at 100% discount but the upgrde button is not functioning

2 years ago • updated by 2 years ago • 2

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When you fully micro-upgrade an item, you will be able to get the next modification for free, if you have the required rank for that modification.

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When you fully micro-upgrade an item, you will be able to get the next modification for free, if you have the required rank for that modification.

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