Kind of everything from the new update

Games Halo 5: Guardians
1

In that IGN video, especially the new gun a the end!!!
https://www.halo.fr/news/28653/halo-5-guardians-apercu-du-mode-warzone-firefight-par-ign/

<mark>mod edit, link fixed ;)</mark>

2

You should read the forums more since there are numerous threads about this already.

3

(sry for the link)

4

Well sorry…