Firstly, how do you push someone away after grabbing them cause I've seen several people do it. And also when putting someone in a chokehold, how do you place someone completely on the ground and continue to choke them?

I gotcha, so many nuances to the controls on this game...

I see

To push someone away, when you've got someone in the chockehold and standing tap R1 and push the left stick foward or bring it backwards to throw them behind you.

When you've got someone in the chockehold and standing tap X to sit them then tap R1 and move the left stick left or right at the same time and you will lie them flat and continue choking them. Make sure you master it in the virtual range or something first.

Thanks man, oh, and is there any reason why when I try to grab someone, more often than not, I just throw him down?

That would be because you're pushing the left stick left or right, I don't know if you slam them while it's up or down. And make sure you have CQC+ on.

You have to make sure and not move the left analog stick when you grab the person (Just hold R1). It took me a few tries to get it right...but now I can choke people no problem.