I want to know the details of weapons in this game. Can any one help me?

Due to the NDA nobody is really allowed to share information about the game outside of what we know from conventions and approved media. So you are sadly going to have to wait a bit longer

However there are some Wiki's around, not sure how updated the information is:

http://dreadnought.wikia.com/wiki/Main_Page
http://dreadnought.gamepedia.com/Dreadnought_Wiki

I am working on a site myself with that kind of information, but sadly you can't share much due to NDA