It is easily one of the most astonishing games you will see out there, the graphics, the identity, the sound design, masterpiece... but if you play it, in a moderate difficulty, the controls will make you suicidal. I really, really hope, this guys don't do the same with the next Splinter cell, because some fan is going to go full school shooter on them.
Please, let it die. Every expansion make people come back and hate the game again. Bad Karma for you guys doing this. STOP but analyze the mistakes made and fix the problems for the next one.