Please be as specific as possible when letting us know what is missing or incorrect. For example, say "this game's trophy difficulty should be 8/10", with a link to a website corroborating this difficulty estimate (if possible), not "this game's trophy difficulty is wrong".
Purchase the Alien: Isolation Season Pass to get access to five add on packs at a 25% discount! All add on content packs are scheduled to be released by March 2015, and will give you access to new maps and characters to take on the Survivor Mode challenge.