I'm noticing a huge drop when I pull host, we talking possibly 5-10 frames per second now and again.
When the frame rate drops from a solid 30fps to below 10fps it's basically unplayable.
Any console players notice or are going through the same as me I am noticing that it happens to 3-4 guys I usually play with.
Some Details about my setup
Xbox 360 Slim Console new last years model
Wired Connection
Installed game
Cleared cache
HD output 1080p
Any word Crytek staff?
Edit
More details at source
http://www.cephgaming.com/forum/m/2059068/viewthread/6582704-video-crysis-3-frame-rate-issues