CeX will do a £16 trade for this so GAME should do a £17 trade. On sale for both consoles, I've ordered the PS4 version myself. :)
Xbox One: http://www.shopto.net/video-games/xbox-one/XB1SN08-sniper-elite-iii-ultimate-edition
This Ultimate Edition contains the acclaimed main thrilling game, as well as a ton of additional DLC content in one explosive package. Includes 3 additional single player missions, 6 additional weapon packs with 18 new weapons. Additionally the original game has now been expanded with free updates since launch to include 6 additional multiplayer maps, a Shooting Range mode, Capture the Flag mode and a brand new Co-Op Overwatch Mission.