Here is a full list of Crysis 3 Weapons that have already been shown off.

Alpha Jackal - An upgraded version of the shotgun, Jackal, from Crysis 2.

Bow and Arrow - The Bow was introduced with the announcement of Crysis 3 to emphasize your "The Hunter". The bow and arrow will have multiply arrow upgrades which includes shock, incendiary, explosive and a special arrow just for stealth.

C4 - High Explosive featured in the at the end of the Crysis 3 E3 2012 Gamepaly Trailer.

Ceph Plasma Destroyer - A alien heavy weapon that fires large rounds of plasma.

Hammer 2 - Upgraded version of the hammer pistol, Hammer, from Crysis 2.

Jaw - A rocket launcher that has been in every single Crysis Game to Date.

Scar - A combat assault rifle that can be equipped with various attachments.
(The Scar has been used in every single Crysis Game to date.)

Typhoon - A new assault rifle that can go fully automatic which was showed off in the Crysis 3 E3 2012 Gameplay Trailer.

Post from http://crysis3blog.blogspot.com/p/weapons.html

Also go to the orignal post to view images of the weapons.

There's also the Scar Mod 2, Scarab, and Feline and I'm curious as to where you heard about the Alpha Jackal?

Did you look at the images in the link for the Alpha Jackal, you will see it their.
Where did you hear about the Scarab and Feline, are their any images of them in Crysis 3.

You failed to mention the typhoon's stupid rate of fire as well.

I actually like the fire rate for the typhoon, it will be interesting to use in campaign but in multiplayer I would never want to use it.

The Majestic has also been renamed as the "Majestic-Six"

You failed to mention the typhoon's stupid rate of fire as well.

Don't forget the 720 round clip size

Heh, I remember in Crysis 2, I had Grendel and like 6 JAWs (I think it was a glitch 'cause I'm pretty sure 4 was the limit for JAWs). I hope they add more weapons in Crysis 3 though, Crysis 2 became kind of annoying (it would be cool if you could take objects, like the good 'ol turtle in Crysis 1 and throw that at an enemy).

Did you look at the images in the link for the Alpha Jackal, you will see it their.
Where did you hear about the Scarab and Feline, are their any images of them in Crysis 3.
well the feline was mentioned in one of preorder packs, and the scarab has been seen in some of the c3 pics

Very good to see a comprehensive list. After seeing the Typhoon in action the other day I'm thinkin I might have to check that one out right away.

The typhoon will be useful in multiplayer purely because you can spray it across a hue area and if anyone is hit by one bullet, they'll be de-cloaked. This'll actually be pretty useful for decent teams

I really hope the Gauss comes back...

I saw some of the weapons mentioned in the gamespot stage demo and they look awesome. The alien weaponry and the Typhoon are hot damn!

Same, the guass is my favorite weapon of the series. I really hope they make it better than it currently is though

The Typhoon will be very overpowered in multiplayer, especially if people are allowed to spawn with it.

It might be like the swarm.... only for campaign.

typhoon will be for multiplayer and spawnable, its part of the pre-order pack. It'll be balanced with super low damage and huge hipfire

Super low damage? Seriously? Weapons in C2 are weak as hell, far to weak to keep up with the fast pace of the game anyway...
I want to see some real guns in Crysis3, not like in C2, where most guns have been weakened down to almost unusable for so called balancing reasons ...