Here's my theory...they can swim (or so I hope). I live on Lake Minnetonka. Take all the large boats out to the deepest part of the lake (104ft deep, 1.5mi from shore) have everyone go raft all the cabin cruisers together to live on, use smaller boats as courier craft, and jet skis as fast attack vehicles...also we can run them over in the water and fuck their shit up with the props.
My choice of weapons:
Bat- we have 6 aluminium lying around
ax- got 3
chainsaw- always a classic
Icepick- not your pussy freezer icepick, a 5ft sharpened steel rod for getting through lake ice
Big ass fish hooks- hook em up, drag em round
machete- a given
Bowfishing setup- see big ass fish hooks
Shotgun- self explanatory
Fireworks- have you seen what happens when you put a firecracker in a sunfish?