I would love to see some more effects tied to bullet strikes. Heck even in CS bullet strikes slow you down. I would like to see a more drastic effect maybe 60-70 % of the time when you get hit with a round. Just yesterday I was an spec ops on insurgent side and a marine laying prone on a building saw me first at about 50 meters...shot me very well M16 in the chest I think (nearly bled to death afterwards)...his first shot didn't kill (fine) me but I reacted quickly and, from a standing position turned and shot three rounds...one of which struck him in the face. I thought to myself...sheesh that reminded me of CS...you lay into someone close range and they ever so easily turn and whack you in the face with a pistol/rifle. IRL you would think that if you got hit in the chest at 50meters from M16...that you wouldnt be able to turn and pop him in the face typically...not saying its impossible...but hey it should be really rare. I also dont like it when I'm shooting someone and they can ever so easily keep sprinting after being tagged by a bullet. Now I understand hitboxes etc...but when I get hit with a bullet I think that I would at least stutter step...but as it is now...the majority of the time I can still spring willy nilly where ever I want until I catch some more bullets. I think a bullet disabling you a little more is in need. I think this is a fairly important issue...and not having it still leads to far more of an aracady expeirience. I think it also weakens the CQB classes, as they rush in with lower powered guns knowing that all they need to do to protect themselves is hit someone once/twice in the chest and then finish them off...thats why spec ops guns have high ROF and low recoil...no need for headshots to neutralize your enmy(thought low recoil/high ROF helps that). SO I propose that getting hit causes more disabling effects (maybe like 60-70% of the time...or depending on where you are hit).
1-When you get hit, it bumps your aim off at least. Maybe only on chest hits
2-If hit in chest area you get fairly stunned (can't keep sprinting/jumping like Carl Lewis still), heck I'd like to see some knockdown effects then allowing the "Finish him" shot

ooooh yeah, imagine the love from shotguns now!...thats probably hard coded though.
These are just base ideas...and I dont think stun effects have to last for 5 seconds...maybe only for one sec or half second. Anything that stops the "I shot someone in the chest at 50 meters and he jumped...turned...proned and popped me in the face" kind of thing
I think this would revolutionize the realism of the game...and certainly take care of the CQB combat issues of spraying and praying while circle-strafing. Please though add more ideas...this is just one, I'd love to see more creative solutions.