i only need 4 more Halo Reach achievements, and they are all DLC related. i own all DLC and i was playing today, i scored 10 skulls at once TWICE in a single match and i did not get the damn achievement!
i also got the Dont Touch That achievement and the Paper Beats Rock achievement and… they didnt pop up. i have saved the films for prrof… but honestly, this is -Yoink!- me off major time…
I did also the “from hell’s heart” achievement 5 times in a single anniversary btb game and I didn’t got it.
And, for the skullamanjaro, I obtained it only in mutli team. But one time I had 10 skulls in ffa and, as I was almost in the collect area, it changed and I got assassinated.
I left trying to get the last 4 anniversary achievements.