All information about the special skill Tier 3 to Tier 4 Promotion in Mobile Strike including how it can be unlocked.
Name Tier 3 to Tier 4 Promotion
Description Promote Tier 3 Troops to Tier 4 Troops.
Unlocked by Troop Academy 4
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Requirements

An overview of all buildings and research necessary to unlock Tier 3 to Tier 4 Promotion.

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