I would like to discuss two gun starter boats. If you take fast gun, big gun and 1/72 and scratch build them they would all cost about the same ($400 for a complete 1/72 2 gun destroyer) except the Big Gun would not need a co2 system for the single shot boats saving about $100, but if you use kits the cost will be about double for the 1/144 boats (no kits for 1/72) but for people who cant build its a kit or buy a boat ready to go. The attached boat is one of three starter/loaner boats we built for people to use to get some experience while they build their own boats. They are American four pipers and we have Allied the USS Blue, Axis the IJN P102 and the swing boat Campbell Town ( Germans had it for 6 hours before she blew up) They have two 3/16" guns (fixed and easy to make) one fore and one aft with 50 round per barrel, 1 pump with a 1/4" discharge ( bought on line) and these are very competitive boats and in the hands of a good captain they can take on the larger boats with ease. These boats are around 53" long and turn on a dime and are very low maintenance, take little damage and the 3/16" ammo can hole a boat at 10' easy so point and shoot keeping your bow or stern pointed at your target. From what I have been told Fast gun is very similar just a little shorter range with their starter boats. Back to the $100 savings of the single shot boats, unless you are playing in a pool or a very small pond you will spend around 90+ percent of your time running and reloading and not in combat plus you do not learn about co2 systems or how to aim your guns (point blank to hit) but for some people this is all they need to have fun. So as I told Scharnhorst when he was looking for a format do your research before you start building and have fun.