Im going to say this is kind of a case of just because you can do something doesn’t mean it effective. Considering at the same TL you get a Fighter with M-7 and a ship pulse laser with AP2 and High Yield plus Improved Military sensors, a ECM suit, and 4 Vehicle Hard Points capable of carrying one Vehicle missile/bomb each(tho you might lose some maneuver rating). I’ll have to post my conversion of the Rampart TL 15 imperial Fighter later as well as the actual stats of the TL 13 I just mentioned.
Also when you compare you TL 13 CCPGs 500 meter range to the fighters ship pulse lasers range of 10 Kilometer (that close range for ship range bands).
Truth be told with the weapon restrictions (no AP, divide damage by 10, way to short range) the only advantage I can really see is the cost.