The Witcher 2: Assassins of Kings

Simply complete chapter 3

I used IGN's wiki for walkthroughs to every mission/quest in the game
You can skip a lot of the quests your main missions are labeled with a little maker and your side quests dont are blank (You can see this by hitting select and using the triggers to change over to the missions tab)

http://www.ign.com/wikis/witcher-2/Walkthrough

Missions as follows (*** indicate achievement)(--- indicate path chosen)(+ means you will need to reload a save to obtain both achievements)

-Assassin of kings *** +Old Friends, +Avenger (You will complete this quest after obtaining the achievement for completing chapter 3 make a save before talking to Letho)

---ROCHE
-Of His Blood and Bone *** Kingmaker
-A Summit of Mages
-Enter the Dragon *** +Sensitive Guy, +Witch Hunter, +Being Witcher George, +Dragonheart, Once Ain't Enough, Once Ain't Enough (This the achievement we are going for :D)
-Epilogue

---IORVETH
-For a Higher Cause!
-The Spellbreaker *** Spellbreaker
-A Summit of Mages
-Enter the Dragon *** +Sensitive Guy, +Witch Hunter, Dragonheart, Once Ain't Enough (This the achievement we are going for :D)
-Epilogue

Side quests (*** indicate achievement)(--- indicate path chosen)
Some quests don't go away as they are ongoing throughout the chapters
I Highly recommend playing all of the side quest so that you can reach level 35 and also because it adds to the story :D

---Either path
-The Wild Hunt
-Returning Memories
-The Mystic River
-The Gargoyle Contract *** Pest Control (pt4)
-An Encrypted Manuscript
-Poker Face: Loc Muinne
-Bring It On: Loc Muinne
-A Score to Settle
-From a Bygone Era

---ROCHE
-Lilies and Vipers
Crown Witness
Pacta Sunt Servanta
The Messenger

---IORVETH
-The Secrets of Loc Muinne