well the gun shop isn't that hard I hear, but im having difficulties with it. mad man with a shotgun in there. but theres 4 hidden uzi's, and pistols are very easy to get.
I prefer melee, it funner, slightly scary, but you get a very satisfying *thunk* that lets you know you got the job done.
you can throw saw blades, but there inside the tool boxes, which are great melee weapons