Fourth Reich Mission Help (tactics)

I am attempting to destroy the "Beast". Unfortunately the best I have been able to do with the Energy Weapons is take the shields down as my ship started to explode. Does anyone have some tactical ideas? BTW I am in a Sherman II with 4 Shield Enhancements, Azdgari regenerator and experimental regenerator.

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Use the "a" button, when you're align, go straight, drop BOTH weapons (from far away), try it again until it work.

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I'll Eliminat u!