The Battle for Tarkonia Secondus

During this battle, we have the Tau/Eldar contigent facing off against a Loyalist Marine defense. The Marine Chapters involved in the defense of Tarkonia Secondus are the Celestial Lions (White/Silver) and the Imperial Castellans (Blue/Tan). The battle revolves around an ancient STC relic the Marines have discovered and are awaiting Mechanicus arrival for transport. The device is rumoured to be one of the oldest of its types and involves high yield energy transformation. In essence, the Marines understand it makes not simple machines...but incredibly powerful (and dangerous) explosives. Planet ending explosives.

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