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Flak cannon (Research) was available in Closed beta, but does not exist in the VIP version of the game. The article is being kept for historic purposes. The VIP version of Flak cannon (Research) can be found here. |
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| Name | Picture | Research Institution | 
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Prerequisites | Rewards |
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| Flak cannon | 
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Research Facility - 4 | ? | ? | Artillery | Enables Flak cannon |