Joe--- on 24 November 2013
The trophies weren't hard at all and since the game is fun it doesn't feel like a grind. Killzone will be a LONG platinum depending on how good you are. I average about 30 kills playing Warzone and my last match I had 41. I got about 12,000 pts and finished first on my team. I came to the room late and we lost so maybe I would have earned more. There is a trophy that requires 1,000,000 points earned. There's also the unlock all attachments for each class trophy as well.
Good luck to all that attempt the platinum trophy.
