See them here
Things confirmed
-AR
-BR
-DMR
-Covenant Carbine
-Grunts
-Elites
-Cortana
-Frag grenades
Feel free to suggest more.
cOLD
> cOLD
oh good. Nice to see you immature bnet users migrated with the rest of us.
> cOLD
This isn’t Bungie. If you’re not going to post something constructive then don’t post at all
> Things confirmed
>
> -Cortana
> -Frag grenades
Hahahaaha 
Really?
Wow! Cortana in Halo 4!
Don’t know if you know but those images also confirmed MC.
/sarcasm <----Yes, some people don’t get the sarcasm from a post like this…
Now I’m happy that they included:
-DMR
-AR
-DMR
I’m pretty satisfied, I fell in love with the DMR in Reach and the AR is standard Halo.