Paintball!

Paint Ball is a Rockstar Verified Deathmatch in GTA Online, and is on the Vespucci Beach.

It is based of a typical Paintball fight - except without the paint - and has many obstacles to defend you against the gunfire, unfortunately, there is no health or armor packs available to collect when under heavy fire.

Trivia

 * It is the only Deathmatch to feature an exclamation mark (!)