Ok, where do I go to see the screenshots I’ve taken on halo? I REALLY want to know
Well I assume you mean in Halo The Master Chief Collection. Well you cant yet online sadly. 
Hopefully 343i will allow this soon.
But if you are referring to other Halos
Old Halo 3 Picture History(This isn’t updated anymore)
Halo Reach(You need to click Fileshare)
Halo 4(You need to click File Browser)