-3 Letters-

[Bilal135]

Donkeys Organization of Zombies

AKZ

[TheSmart]

AK-47 Knight zombie.

LOV

[Bilal135]

Lambert Organization of Vaccination

PZA

[WhoAmI]

Pizza Zone Academy

XDD

[Enargy,]

'Xtreme Deathmatch Derby

ROFL.

[Walid]

'Xtreme Deathmatch Derby

ROFL.

3 letters not 4 anyways

Rolling on Floor Laughing

HKL

[Anubhav]

Hex Kilo Light

XXD

[Bilal135]

Xaguration Xterminator Donkeys

PPZ

[Anubhav]

Posse Paintball Zone

SOS

[Bilal135]

Save Our Souls

ZKA

[Anubhav]

Zakie's Kilo Advertiser

LOV

[Bilal135]

Lambert Organization of Vampires

AZA

[Anubhav]

Annie Zilean and Ahri

STV

[WhoAmI]

Serious Time Vladimir

AGL

[Bilal135]

Advanced Gutt Long

FAZ

[Anubhav]

Fancy Advanced Zap

NUL

[Enargy,]

Nothing Unless Lies

BRO

[Bilal135]

Big Rock Organization

FYA (fuck your ass)

[TheSmart]

Fly Yahoo access

MEE

[Mr.ShariQ]

Monster electronic eagle.

WTA

[Anubhav]

What the ANGLE?!?!

TAW

[TheSmart]

Tea access wolf

MEO

[Bilal135]

Meow Economical Organization

CMF (Hint: viewtopic.php?f=115&t=87916)

[Anubhav]

Chaos MTA Freeroam

CEF

[Mr.unpredictable.]

Chromium Embedded Framework.

TSP