This is a safe corner, top right

This is a semi safe corner
works 80% of the time. you may need to kill a few zombies to get them stuck

this is the weirdest one when you go behind the tree and zombies wont start chasing you, you will need to kill the ones already on your tail. new ones will spawn and you can shoot them
the best place to play is behind this trashcan, pop a blade trap and hide. shield bash out and pick up items before it goes down

hide behind the car and your blade will kill most things, still a few that can get past or range hit you over the car. you will need to shield dash out and kill them, then retreat back to your spot. isome of the car can be fired through and some of it cant

also this treelog shortcut that zombies cant pass and have to go around

Go survivor, Pick up melee weapon, Shield rush boss, Wack, Run away, Repeat

if you pick up two weapons and mash Q well clicking really fast you can fire both weapons with the same reload. this lets you fire two shoot guns with the reload time of 1 shot gun

Respawning
when you die you lose all your items and should wait for the trap to come off cooldown or you can just wait until the end of the level and kill all the rest of the zombies, less units and xp this way