thanks for all the sensible inputs, choosing the right tools for a particular situation definately requires knowledge, training and exprience. I would not underestimate the effectiveness of hand to hand combat in close encounters.

What's most powerful/effective weapons? reminds me of a Chinese board game, http://en.wikipedia.org/wiki/Jungle_(board_game)

@Warmark, on the contrary, it only demenstrates how nonsense Z's respond… like the Federal "War/Defence" Dept, spending this country into oblivion.