The PlayStation Blog have answered many commonly asked questions about the game today.
Check below for a summary, and also http://forums.ubi.com/eve/forums/a/tpc/f/7551024144/m/6491039546 for the full FAQ.
Will the game support four-player Co-op offline or just online?
The four-players Co-op mode is supported online, and offline via LAN by linking two PS3 with two players split screen per PS3.
Will the game support 4 player co-op and multiplayer in split screen? How much of the game-play takes place in open environments vs enclosed spaces?
The game supports two players split screen per PS3 in Co-op and multiplayer. You can connect two PS3 with 2 players playing split screen to make it four players. And you can even LAN four consoles to play four versus four... if you want to. And, it's an even split for gameplay in open vs closed environments. It ranges from claustrophobic firefights to stunning unbroken vistas - but you will be too busy with the action to take in the view.
Will there be customizable elements to some weapons aside from nectar enhancement?
No need. The power of Nectar and the rebels resourcefulness will give you all the firepower you need.
How long will the game be?
The campaign will take you through twelve places, but there are no levels as usually meant. The whole story will take place over three long days and nights, without any loading times whatsoever. The time you will need to go from the beginning to the end pretty much depends on your skills and the level of difficulty you chose. It can be shorter if you are especially skilled or much longer if you are especially average! ;)
What inspired you to make Haze including the use of 'Nectar'?
Nectar is everything. It shapes the gameplay throughout.
Does this game support the SIXAXIS?
Yes, and it can get you out of some life threatening situations... As an example, you can use it to pull out a knife or extinguish flames when you are on fire.
Does this game have an option to install the game to the hard drive?
We install some data, but not the whole game. The disc will still be needed to launch the game.