Last Day On Earth Bunker Alfa 4th Floor Almost Melee Only
I typically use a glock to kill the Numb zombies (the fast frozen ones), then door trick the frozen bloaters but this time around I wanted to use the rest of the AK that I had used for the 1 heavy turret.
Skipping the first heavy turret is entirely optional, you just have to be prepared to spam meds when/if (it doesn't always) shoots grenades.