So IMO most of the trophies in this game are pretty damn easy. Looking at the list, the biggest obsticle in the quest for platinumization = 10,000 competative kills. In an hour of competative play (3 sp runs and co-op have taken my time so far), I've only managed 50 kills. Seems like it's going to take forever to get this one lol.
So, out of curiousity, how many hours into competative are you with how many kills? (no need to exagerate, we all know you're the king of fps