the highest rank is general grade 4 witch is achieved at 50 high skill or 5000xp.
You have to prestige like say ur a spartan you have to get up to lile a pathfinder pathfinder is not the next rank after spartan. -Andrew R
First, you have to reach Spartan Rank 50. Once this is done, open the "Spartan Hub" menu, and scroll upwards to "Career". Select "Specializations", and then select "Operator". Then enlist in that Specialization.
You can't.
Yes, I on some missions in Spartan Ops
The first player is chief and the second is spartan 4
Unlock it as a Spartan-IV at Level 12 I believe
Yes, in Halo 4 you play as Master Chief and soon find other Spartans (Commander Palmer is the leader of them)
Halo 4 will not have "survival mode" (by the way it's called firefight) like Reach and ODST, but it will have Spartan ops, which is essentially a second campaign based on a spartan other than Master Chief.
There will probably be a halo 4 and if there is yes Master chief will be in it because if you complete halo 3 on legendary you see that he survives in cryo sleep. =]
Both players will be Master Chief.
If you preordered Halo 4 and have the assassin emblem code, you can use it by going to your spartan's emblem and looking for it in the foreground option.