What size CO2 tanks are people running in their 4 unit ships? Or better yet, what's the smallest size tank that you can get away with in a 4 unit?
3.5oz is most common. "Standard" guns need about 1/2 ounce per 50rnd mag. ( Of course there is variation ) so for a 3 gun ship (4 units, assuming you want a pump) you probably want 1.5oz or so. (I think that's around 42g)
I ran the Baden with 4 guns on a 3.5 tank but ran out once or twice overall during battle. It required a good fill on the bottle and a fresh bottle after tweaking. Would have preferred a 5 oz tank but had already invested money in this one. 3 guns are no issue at all, you can tweak and battle on a good fill with no problems.
1\8 inch tubing and large orifices in the valve may use more gas than a 3.5 oz tank can supply. My Alfonso (Espana) uses all of the 3.5 oz. for three guns (1\8 and 1\8 inch orifice) .
Same here my Mogami has 2 guns, with a 3 oz bottle, and it needs a really good fill to be able to shoot all 100 BB's
