Cobra Piranha
Machine guns: Marauder

A fast attack boat capable of quickly entering the fray, sinking the enemy, and getting out unscathed. Cobra found that the addition of Stealth technology the Piranha became feared on all Seven Seas.
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I'm working on growing the Cobra Navy and this was an easy one to put together. A quick blast of black spray paint, swapping the guns for Marauder Gatling barrels, some details, and voila finished.