Freeborn Heavy Mag Cannon Vietnam Post War R-boats have a movable propeller

R-boats have a movable propeller that means they can make 1 turn before they make any move

but their role evolved under fire

As with all larger compression weapons it can suffer from momentary field collapse but that's a minor issue when you can crush all before you

Modified Campaign

Freeborn Heavy Mag Cannon Vietnam Post War R-boats have a movable propellerThe heavy mag cannon is a larger and more powerful version of the standard mag cannon. Mag weapons are favoured by the Algoryn and are used to some extent by Freeborn and other races of Antarean space. The heavy mag cannon is designed to deliver a single shot at an incredible velocity. It is a distinctive longbarrelled weapon and the most powerful weapon of its kind. Ammunition is designed to defeat heavily armoured targets and release a mass