Roadrunner8486, I just wanted to say your comment just cost me 2 hours, largely my fault as well for not reading the trophy description, but your comment led me to believe I was collecting urns, and that it was bugged... the trophy is to collect the UBER CHESTS not the Urns... You had me having a heart attack over here, thinking I'd have to replay the whole game
Hopefully this enlightening bit of knowledge helps you out.
Btw uploader, thanks for the great save set, you've saved me countless hours of frustration, I used to like GOW games until they came out with trophies...
-I'd also like to note to anybody who tries, the GOW3 are all useless for the NA disc version, I don't know if OP only had the digital copy or another region, but his save is marked as "preferences" but in french or spanish or some crap, unlike the normal english one... as a result when you go to load the game it says you just have no save file at all... I can only assume it's a EU save file.
GOW 1&2 worked fine with the NA disc version though.