There were already phaser arrays on the engine pylons before the war mod upgrade. Adding arrays to the top of the nacelles hardly seems like more of a stretch. The nacelles are horribly exposed and vulnerable as it is with or without weapons on top of them.Are you serious? They put a weapon on top of the fucking engine nacelle? You actually think that's impressive?
Adding the phaser arrays probably eliminates a blind spot as well that wasnt covered by the small arrays at the top of the Galaxy's "neck"
At least the war mod upgrade seems to have solved the problem of "insta-warp core breach".
/edit: I forgot about the two small phaser arrays located between the nacelles. These would cover most of that blind spot. I guess they just wanted more weapons? The arrays on the nacelles might be more powerful then the small arrays on the neck, pylons, and between the nacelles *shrug*.


