ok i see allot of people posting tactics for grief but i think i have some extra that have not been listed around.
HOSTING = always getting kicked/host migrations? well if you play with you're friends try sign out and sign back in. get your party together then search for a game. if it says finding new competition that means your team will be the host(most likely you) then you won't lose a game even if the enemy leaves.
EMP THE BOX WITHOUT THE EMP?!! - this is extremely clever move you can do every game stopping a player from using the box without having an EMP. first of all you will need 4 grenades.. once the enemy uses the box you will throw your grenade under the box 1-2 seconds before the gun appears. AFTER YOU THROW YOU'RE FIRST GRENADE YOU COUNT TO 3 EACH TIME YOU GET TO 3 YOU THROW YOUR NEXT GRENADE! after your 4th grenade the gun would have disappeared and he would not be able to pick-up his weapon. ( when there is a grenade you cannot pickup your weapon unless you throw it back)
- DOLPHIN DIVING - THIS IS PROBABLY THE BEST UNKNOWN TACTIC ON ZOMBIES, if an enemy player is down usually his team-mate will prone to revive him so he cannot be stabbed away. well once he prones dolphin dive on him from behind. he usually dies ( its not easy but its funny and great way to win the game FAST)
- GALVA NUCKLES - THIS IS A MUST HAVE! if you are playing against a competitive and you don't have these you will not last long! these can get you out if you become trapped by the enemy players even if they are crouching. normal Knife is no way as strong as this.
- EMP GRENADE - if the enemy get's jugg they are most likely to last for a while. simply EMP the Juggernaut and stay at the double tap corner. you will rarely get zombies and you can easily defend yourself whereas the enemy won't have a clue JUG is off and will instantly go down after a few seconds.
- FIRE WINDOW - this can only be done if you are playing in a party with friends. once the game starts the noobs usually are building windows or trying to find zombies to kill well the fire window is located next to the back door of the BAR. once a player is rebuilding this window he will burn will rebuilding it.. this is where you and your team-mates will crouch around him and trap him on the fire! IT ALWAYS WORKS!
- m14 - always buy this until round 6-7. if you run out of ammo buy ammo again this will get you fast kills and points.. if you don't have 6000 by the end of round 8-9 for galva knuckles just hit the box and buy juggernaut.
-reviving - always crouch when reviving your team-mates.. if you prone they can dive on your head causing you to die.
EXTRA TIPS(guns) - mustang and sally's are a good choice.. if at higher rounds you're team mate goes down and the enemy run a train around him you can easily clear the train and revive him.
executioner- once upgraded its a 1 hit kill until round 25 or something like that.. grief games don't usually last that long so you basically have insta-kill forever.
DSR - upgrade twice and you will have a 1hit sniper until round 30. if your trapped you can shoot your way out.