An ace with 4 kills with an MP9 and the last one with an AK47 that I picked up from an enemy. The round turns into a 1v3 in the favor of the enemies but I happen to be able to clutch it.
Fun fact: the player MaTo on my team got an ace on the previous round xD
This video is recorded from a demo, which only has half the tickrate of the MM servers, 32, so excuse if my shots look less accurate than they should. :P