What kind of game is this?

Warhammer 40,000: Eternal Crusade is a Massively Multiplayer Online Third Person Shooter.

Players select one of four factions of the 41st millennium and fight other players for control of a persistent world at war.

As they fight their way across the planet, players claim territory in massive battles and earn the right to customize and improve their characters in a deep progression system drawn from Warhammer 40,000 lore.