How To Check KD in MW2
1
Go to The Multiplayer Menu Screen.
2
Select Options on PlayStation, Menu on Xbox, or the applicable key for PC and other platforms.
3
Select the 'Stats' option.
4
Once you go into the stats page, it will load up the player's KD ratio that they have averaged so far in MW2.
The only way currently within Modern Warfare 2 to check any kind of K/D Ratio is the one provided at the end of individual matches. This won't be visible during the match, so can only be checked once each match completes.