Couple things I noticed with death cam:
Spitter zombies more or less kill every other zombie nearby. It’ll keep spitting acid at your survivor’s corpse, damaging all the non-acidproof creatures gathering around your survivor, eventually dying.
An exploit, though maybe it doesn’t work anymore. Death cam can make ammo using enemies waste their ammo on your corpse. For example, lab start. Your survivor gets killed by a turret. Using death cam, the turret will keep shooting until it runs out. Start a game on the same run and scenario, and if you end up on the same lab the turret that killed your previous survivor will no longer have any ammo.