Black Ops 6 Zombies - Necromancer Medal ?

[R4VI4TOR]

One question, whats the best way to get it ?
What modificators to put on the Brain Rot Ammo Mod work best ?

I have a daily to get 5 such medals, but either the zombie doesnt live long enough to get 5 kills (He misses alot !!!) Or he doesnt activate fast enough and then there are only 4 left...
The Cloud explosion doesnt kil 5 zombies at once either...