So i went back and played Retail FS2 yeah i know it was weird. in the Mission with Repulse, which i played 5 times. On 2 of the play throughs the Repulse is destroyed by the Colossus beams. the rest the repulse rams the colossus, but each time the repulse is destroyed as soon as it touches the head of the retail colossus model.
Now went back to the FSO/MVP/FS2blue. Each time again the Colossus will not open on the Repulse and each time the repulse ends up going inside the colossus and denotating at the engine section of the Colossus, this is why i thought there was a issue with the MVP ships.
As for the Hatty, i tried all that, even replaced the Turrets1, 2, & 3 with terran turrets and they wouldn't fire, Turret 2 fired briefly when there was a target directly infront of it.