That looks fun, but senseless.
I actually made the request of Survivor Shoving Fun and BHaType doesn't seem to have taken interest and upload it on the Plugins section after.
>
Here < it works just like a tank punch and makes the animation, but you can remove the animation and make it look like if you were playing Left 4 Dead(1) with these 2 commands.
Code:
survivor_shove_teammates 1
z_gun_survivor_force 70
Post on what to remove from source for no survivor flung animation.
Edit:It's very alike to what you show when you shove your Survivor buddy there.