Infinity Ward has confirmed that in an upcoming update, they will be releasing fixes for the killfeed that fans have been complaining about for a few weeks now to allow collats and other chained kills to easily show up in the feed.
Joe Cecot confirmed on Twitter that the fix is a code change and requires a patch update in order to release, which is why its taking a bit longer to release. The next big update for Modern Warfare went into submission recently and will be released based on first party approvals.
Now, Infinity Ward has also confirmed that a 6th row will be added to the killfeed to show more during the game.
We will keep you updated on the next big update for Modern Warfare.