Mine is 41 kills June 2016
I believe I went 39-0 with a Mantis on CTF. I was 1 kill away from an Unfriggenbelievable 
I’ve gotten 34 kills twice, once on Exile king of the hill and again on BTB Settler. My best round in terms of points though was 530 on Meltdown, I remember going nuts with the Mantis!
(p.s.- just got 33 kills in small team Haven the other day, thought that was pretty impressive)
I went crazy with as many different ordinance that i could and went 64 kills and 3 deaths. Best i ever got.
63 kills 2014
51-1 Banshee on Ragnarok
I have gotten 72 kills before. It was amazing
50-5, on Exile.
Lol 54 and still lost. Sigh.
am skrub. 27-11 in slayer. To be fair I had a semi competent team match up, except for about 4 randoms, who were talking trash about the 10 year old boy in game chat’s mother due to CANCER, sad really. One of the 4, a teenager I presume, he sounded like one, ran everyone one over, couldn’t drive for crap. Then 10 year old boy, who only got 2 kills with stickies, decided to call me trash because of my gamertag. I practically won the game for them, the 2nd best on our team had 15 kills.