Originally posted by Iussus
Haven't got the plat yet. I still need to clear missions 2-9 individually, plus the two co-op trophies and the one undead trophy.
All the difficulty + Took the Highway (clear mission 10) + Contributor + all the kill trophies popped when I finished on morbid, I got the weapon/armor upgrade trophies while playing through the last mission. Ran through the first mission on braindead, took no damage and hunted down the loot for the survival/loot trophies. 23 trophies for about an hour's worth of work, not too bad.
EDIT: Do these saves also work for the co-op trophies?