Halo 4 and H2a don’t have weapon or explosive hit decals on terrain and objects like in the campaign of Halo 4 or how halo reach has them in its MP. Kind of jarring going from every other game with this graphical feature to halo 4 and H2A where it doesn’t work.
Another issue I noticed with Halo 4 is the garbage collection is very very aggressive and on the same level as it was on the 360, this should also be fixed as its also annoying having everything disappear in-front of you or from right behind you.