Soft collision for friendlies

[Xyntech]

I'm not sure how hard or resource intensive it would be, but I would like to see something that's a decent cross between the real life idea of inching your way through a crowd of friendlies and the in game compromise of clipping through them. Something even slightly more realistic seeming than TF2.

I imagine a one dimensional line running down the middle of a player model, where it is extremely hard to pass. From that center point, it get's gradually easier to pass by them, so that when you try to run into a friendly, you sort of slide around them more than walking right through them. The further you are from each others centers, the faster you move through them.

Passing through a thick crowd would still be possible, but it would be a lot harder the tighter they are clustered, but never impossible. You could also never stop moving while clipped inside a friendly, because as long as you are standing still, you would get pushed outside of their area. Obviously that pushing radius should be small, so your arm or gun or part of your foot may still be clipping into them, but no torso clipping, so you can't just have a ton of guys all sharing the same tiny spot.