RDM stands for Random Deathmatch, which means killing another player without a valid roleplay reason.
VDM refers to Vehicle Deathmatch, which is when a player kills another player with a vehicle without roleplay reasons.
NLR stands for New Life Rule, which means that once you die, you cannot return to the area for a certain period and should avoid seeking revenge.
FRP means Fail Roleplay, which refers to actions that violate the immersion and realism of our roleplay environment.