If what you are saying would be true, then everyone should have the same weapons, and everything. It isn't true, so you are wrong.
You are making everything so simple that you made yourself to believe in something what isnt true.
You want in PS every weapon human ever invented on whole earth. What will you say about the not yet invented weapons (which probably never will, because for example swords doesnt matter anymore) Why don't you want THEM in PS ? Too hard? It goes beyond your border of thinking?
No, i'm not offending you
I don't mean to offend either, but is english really your first language, 'cause I find it a tad bit hard to understand ya...
Anyway, I don't want "every weapon human ever invented"... it would be nice, but it'd be a tough cookie for the dev guys. And I would
love to see "not yet invented weapons". (Unless you mean 'not yet invented' as in 'futuristic'. That would suck. I mean original weapons)
Where're you getting this from, anyway? I'm just saying weapons should adhere more to their relevance to the world, rather than what the devs
feel like implementing.
If a katana would work well for a certain battle-situation, then katanas should be implemented. If a katana with a special crossguard to improve grip would help, then
that should be implemented. That's how warfare evolves in reality, and it's how modern warfare should evolve in PS.
Unfortunately, I don't know enough about warfare to give good examples, but you get the idea. (People needed pistols that could fire more than once, so they invented revolvers - that sorta thing.)
[ Edited for language. --Karyuu ]