Which is stupid. He snuck in your tent and decides he will try to see if he is lucky when randomly stabbing the body instead of throat or head. It it's almost laughable ever he trying to call any infiltrator an assassin when history implies that all infils are idiots and can't ever actually kill someone.
No. You woke up. You had a weapon in your hand. He did not have the opportunity to just stab you through the eye when you slept.
In any case, the game never tries to call infiltrators assassins. That's all the players' doing. Just like trying to make them out to be ninjas.
Don't try to put words in the game's mouth, and then claim that the game doesn't fulfill them. That's...just so many kinds of wrong.