30!? Wow... to me it took around 10-20 minutes. I played as Support Specialist with Katana, Action Lever Rifle, Bullpup, later on L.A.W for siren, katana'd FP then at end hit him with knife few times till he died, melt Jack Frost, got eggnog like accidentally, didn't even know I did at first, Tis better to give than recieve 4 some reason is bugged and I got it at solo as well... by dropping and picking up weapons... ofc also killed Patty and by that finnished the Evil Santa's lair. All in 20 mins or so.