You do not keep the skulls in Halo 2 they are a one level sort of thing.
no considering gode is not a word
yes halo CE and halo 2 came out before 300. 300 came out during halo 3 so it's bullcrap that the makers of 300 are sueing bungie for using the word Spartans because halo came out befor 300 so its bungie who should be sueing them.
there is no halo zero 2 there's halo zero halo PC (1) halo for vista (2) and halo 3
No there is only one Halo Reach. Other editions in the Halo saga include Halo, Halo 2, Halo 3, Halo Wars, and Halo ODST.
.. No, Halo 1 and Halo 2 and have different story's
If you are talking about the Halo ring in Halo 2, it would be Installation 05, also called Delta halo.
I don't play Halo 2 on PC but my guess is that if it has campaign or story mode, you can play alone. If you wanna play multiplayer with other players, you can't unless you do local matches.
halo 2
No, there are no Mongooses in Halo 2.
no but you can be the arbiter in halo 2
It does not come with Halo: Combat Evolved or Halo 2.