Apply new explosion modifiers to cargo ships/barges

[migmadmarine]

Simple idea, basically encapsulated in the title, but occurred to me the other night how dramatic and hair-razing attacking shipping could be if the new "ammunition carrier" or "fuel Carrier" explosion effects could be applied (and up-scaled) to the cargo ships, river barges and German landing barges we have in game. Hopefully this could be implemented for the expansion of naval assets that is expected to come with Normandy, and would be especially good to have for if/when the pacific does come. 

 

Secondarily, please introduce anti-shipping missions to career mode, I don't miss much about the old career mode, but the attacks on river boats and flying IL-2s in support of river boats in Stalingrad were very fun.