Okay Dragonathon...
Anyways, realism is a factor that can't be changed easily with the engine the devs are using for this game.
As for the sound part... The sound lets the person being stabbed know that "Hey bitch, yo gettin yo ass stapped cracka." meaning you should turn around and shoot the backstabbing spawnern00b a NATO round in the face.
As for the second one. The weapons changing part... Not much can be done about this because it would take a lot of code for animation which would only further suspend the release of future versions. And...
NOT EVERYTHING HAS TO BE LIKE GHOST RECON!!!... The engine the devs use for TC:E greatly limits the... "Ghost Reconish" like effects you know and love. Also, Ghost Recon Sucks because it went from tactical first person shooter to "Hey, I can take hundreds of NATO rounds in the face and still not die" fighting mode.
Now for the third one, stuff like that could be done... But, in that case, it would be unrealistic... There is plenty of gore and I really don't see any need to add more.
And also... are you and Dragonathon in cahoots or something? Because you both think exactly the same...
~Silentcrisis