I believe you could do that in the original CoD and its expansion united offense for the PC. Throwing back grenades that is.
You should try to see if throwing the flash bang or grenade at the person so it hits them and the impact kills them. Though when I did this in the first modern warfare I also hit them in the head or they were really low health after shooting them with a pistol. This didn't happen very often and was more of a act of desperation, also only played hardcore search and destroy in modern warfare and Retrieval for CoDUO.
I play a couple times a week, sometimes solo sometimes with Sheo, MH, Varg, various others. I really enjoy the PvE Terrorist Hunt mode even if it is a bit repetitive. Haven't spent much time in PvP because I am the suck against other people.
If I can find it on sale... Although now that I don't puke playing Witcher 3 (yay ini change) and Xcom 2 is coming out. Hmmm
Yeah I'd recommend finding R6S on sale. It's fun but there's just not enough content (yet) to justify $60. If there was a story campaign it would be a different story.
I still greatly enjoy the game. and I like PvP, even though there can be frustrating losses sometimes.
6.37gb download for the update, you can play the scenarios while the rest of the game is down for the patch. Of note two of the scenarios are blocked off with no stats about them think it was 5 and 7, suspecting they may put the new operators in to those two for people to get a chance to try them before buying them. I enjoy both PvP and PvE in the game, I would recommend it highly if you like realistic shooters, for the price point I'm happy with what I've spent on it for the gold edition. While I think that it should have been a bit cheaper, I've thoroughly enjoyed it enough that I'm not upset such as with other games that I've pre-bought.
