Im at the very end of the game... i try to get into the black stream but no matter how fast i press W i always die shortly before i could fall into the stream. This is ****! At least i wanted to see how the game ends.. now i have to start all over again or what?

Second: My Nanocatlysts did not update after level 3 or 4... so i had to finish the game ( which is impossible now grr!) with only 3 or 4 updates enabled.

third:
The sound of me walking and jumping is gone since level 6 and it never came back.

Can anyone please help me?

They messed up that QTE, usually blinking means button mashing here it means hold down W.

As for the no footstep sound, you probably have covert ops upgrade active.