Moved to off-topic, as I see nothing related to mapping, nor modding.
A general note:
This kind of threads are pretty pointless and repeating a request a million times, won't make things happen faster, in this case. The only considerations about additional weapons I know of is the combat-pistol and anything beyond is not up for discussion at the moment.
Therefore I suggest you don't waste your time on telling what hell-of-a-gun you just saw in this other game and simply stay patient until something will be set up for discussion officially. ;)
A general note:
This kind of threads are pretty pointless and repeating a request a million times, won't make things happen faster, in this case. The only considerations about additional weapons I know of is the combat-pistol and anything beyond is not up for discussion at the moment.
Therefore I suggest you don't waste your time on telling what hell-of-a-gun you just saw in this other game and simply stay patient until something will be set up for discussion officially. ;)