A multiplayer demo for Far Cry Instincts: Predator is on the Xbox Live Marketplace.
It is probably the smalled demo that I've ever seen on the marketplace weighing in at only 344 mb.
The demo contains one map, five gameplay modes and support for up to 16 players.
If you want my opinion, its a pretty crappy demo + game, but with such a small file size, what have you got to lose?
(don't say 344mb……..ok, bad joke.)