Pirates of the Visutula

[Judge Holden]

I've finally wrangled my players into accepting Old Adam's proposal. Problem is I grew up playing this game when I was very young and probably having some very foolish notions of what can or cannot be done on the ol Wisla Krolowa in 'real life'.

So, my questions are:
Can I tow an amphibious vehicle? I know the barge gets pushed, but could you tow an amphibious vehicle behind the tug? Specifically the Canadian forces Cougar fighting vehicle (codename: MILF)
What can be mounted on the barge, large gun/vehicle wise?
Could you build a raised guard tower like emplacement on the barge?
How many tons of sheet metal can you armor up the bridge wheelhouse with before it just rolls over and sinks?