Go to console and type the commands listed below.

And if you like it then bind it to a key like this
bind c "vocalizeplayerdeath" and try pressing c now! Enjoy The List!

-Death Scream : Vocalize Playerdeath
-Vocalize Warn Tank : Vocalize Playeralsowarntank
-Vocalize Warn Witch : Vocalize Playeralsowarntank
-Vocalize Warn Boomer : Vocalize Playeralsowarnboomer
-Vocalize Warn Smoker : Vocalize Playeralsowarnsmoker
-Vocalize Using Adrenaline : Vocalize Useadrenaline
-Vocalize Hanging From Ledge: Vocalize PlayerLedgeHangEnd
-Vocalize Looking4Teammates : Vocalize Playerlostcall
-Vocalize Eating Pills : Vocalize EatPills
-Vocalize Giving Your Teammate An Item : VocalizePlayerAlertGiveItem
-Vocalize Grabbed By A Smoker : Vocalize PlayerChoke
-Ask Team If They Are Ready : Vocalize PlayerAskReady
-Ask The Team To Follow You : Vocalize PlayerFollowMe
-Vocalize Reaction To Friendly Fire : Vocalize PlayerFriendlyFire
-Ask Team To Wait For You To Heal : Vocalize PlayerHealing
-Asked Teammate To Let You Heal Them : Vocalize HealingOther
-Ask For Help : Vocalize PlayerHelp
-Vocalize Hurrah! (Encouragement) : Vocalize PLayerHurrah
-Vocalize Let's Go : Vocalize PlayerHurryUp
-Say You Agree / Are With Your Team : Vocalize PlayerImWithYou
-Let Your Team Know You're Incapped : Vocalize PLayerIncapacitated
-Notify Your Team A Horde Is Coming : Vocalize PlayerIncoming
-Tell teammate To Turn Of Their Flashlight : Vocalize PlayerKillThatLight
-Vocalize Laughing : Vocalize PlayerLaugh
-Tell A Teammate To Take The Lead : Vocalize PlayerLeadOn
-Tell You're Team You Have Fallen Off A Ledge : Vocalize PLayerLedgeHangStart
-Vocalize You're Getting Worried From Hanging : Vocalize PLayerLedgeHangMiddle
-Vocalize You're About To Fall From The Ledge : Vocalize PlayerLedgeHangEnd
-Vocalize Saving A Teammate From A Ledge : Vocalize PlayerLedgeSave
-Vocalize Saving A Teammate From A Critical Ledge Hang : Vocalize LedgeSaveCritical
-Tell Your Team/Teammate To Watch Out! : Vocalize PlayerLookOut
-Tell Your Team We Should Get Moving : Vocalize PLayerMoveOn
-Vocalize Nice Job! : Vocalize PlayerNiceJob
-Vocalize No! : Vocalize PlayerNo
-Vocalize Reviving A Teammate : Vocalize PlayerReviveFriend
-Tell your Team/Teammate You're Sorry! : Vocalize PlayerSorry
-Tell Your Team You've Found Ammo : Vocalize PlayerSpotAmmo
-Tell Your Team To Stick Together : VocalizePLayerStayTogether
-Vocalize Taunting : Vocalize playerTaunt
-Say Thank You! : Vocalize PlayerThanks
-Vocalize Being Vomitted On : Vocalize PlayerVomitInFace
-Vocalize Wait Here! : Vocalize PlayerWaithere
-Vocalize Be Careful : Vocalize PlayerWarnCareful
-Tell Your Team Infected Are Coming From Behind : Vocalize PlayerWatchOutBehind
-Vocalize Yes! : Vocalize PlayerYes
-Vocalize You're Welcome : Vocalize PLayerYouAreWelcome
-Vocalize More Casual you're Welcome : Vocalize YouWelcome
-Vocalize Look! : Vocalize SmartLook
-Vocalize Being Jockeyed : vocalize SurvivorJockeyed
-Vocalize Empathetic Run :Vocalize PlayerYellRun


Character Specific Vocalize Commands

Coach

Ellis

Rochelle

Nick

World Event Vocalize Commands
(These commands require certain things to happen before they can be used)

-Vocalize Finding Pills : Vocalize Playerspotpills
-Mention Hearing A Jockey : Vocalize CommentJockey (but it must be only working like once a level)

Commands We're Curious About

-Vocalizing the player has spotted a molotov / pipebomb
-Jockey Reaction
-Vocalizing the player has spotted an adrenaline shot.


How to bind Vocalize Commands?

1. Make sure console is enabled. Esc > Options > Keyboard and Mouse > Enable Developer Console. You can then open it by pressing the tilde (~) key at the top left of your keyboard.

2.Open console and type the following : Bind "Key" "Vocalize Playerdeath"
(remove the quotations from around "Key")

3. Now press the key you bound it to and hear the lovely sound of Vocalization.