ever considered the fact that there are literally no humans on this planet and that there may be little stockpile of human weapon on the ship if that ship blew up so how can there be human weapons in the game. i bet no one noticed that. i have a strong bet that there will be only alien weapon that you can use unless the unsc are already there which is likely not. Now about multiplayer remember we may have something totally different in this game as its new and there is a chance firefight will have a major upgrade. The campaign well ill combine it with the teaser trailer. Noticed how Chief's armour has changed some say its art reason but according to some sources there is a certain reason. how well lets look at the teaser trailer ever noticed how chief goes through multiple rooms full of equipment that look like they are used for building or mending. Also the teaser trailer may actually be about midgame so there may be missions on the ship before the point the teaser trailer takes place. Example being flood forms landing on the ship and chief having to kill them. Gets injured by some new form but successfully vanquishes it. Due to his injury cortana has to use the equipment above to fix the chiefs armour and possibly upgrade it. Remember there may be floods on the surface on the planet like on some forerunner shield planets. Also maybe some also got through the portal Also if anyone wonder where the energy is coming from to make this work they got to wonder how the cryo tubes are working this might mean that the engine is still intact and working but the ship thrusters are not. And if you consider how cortana is able to be in the ship she has to be fuelled by a engine to be able to work for that long. Last note if you notice the rooms that the chief goes through you may notice that it looks as if the ship is still functional on operation basis not for flying but for getting little things done. Also another thing notice the pattern when the campaign is played first you fight the normal enemy which is the covenant then you have to defeat the darker enemy the flood. Now the flood are the normal enemy so there is going to be a new enemy that you will fight who we dont know and it is not the sentinels. also if there are humans they will be either be oni or innies as these are the only two groups that will likely be this far off. also the unsc are not going to be there as well as the main covenant group because they are busy trying to fix their empires and reconstruct their planets. also if there are covenants around there it will be likely to be some small group of elites or loyalist with a prophet. As these might be trying to join the great journey or are trying to escape the elites. another thing why the ship was exploding is maybe because of the sentinels. [Edited on 07.03.2011 10:36 PM PDT]