Twinked weapons, What have people done with Arsenal? Options

[Bashfull]

The shotgun thread made me wonder what people have done with Arsenal? Is there a set-up of choice from the game's number crunchers?

Maybe we should set up categories:

Best bang for your buck
Biggest Boom (subcategories for each weapon type: pistols, automatics, longarms)
Big damage that you can sneak into the boardroom.
Other