I don't know if there will be aa in the campaign because where will it fit in where would chief get them. In multiplayer maybe sprint and evade could fit in .
But this is a total different company we are talking about in halo reach it worked they fixed glitches they generated exit ment for halo reach by giving a lot of information and leaving the fans off on a cliff hanger near the realease
1st link is "halo4folower what we know" 2nd is the same as the first one 3rd is
" new halo reach maps same as old halo 2 maps " by the username"Joshua0094055" 4th is called"possible halo 4 hints:a - z with frank o'conor" 5th is " halo 4 trailer"
I don't kNow if you have seen they railed but he is on a broken destroyed ship with limited weapons he only has the ones on the ship and the forerunners weapons so there will be a few from halo3 but a lot of new ones.
I think they shouldn't maybe the story line went or could go like this " they lost all the armor abilities in halo reach and there haven't been any since because halo reach was the first halo on the timeline
Me two I love the halo ce pistol and the assault riffle. But there will probably only be those guns at the beginning from the crash ship master chief was on unless there is more Spartans or marines on the forerunner planet