The mortar is a grenade-launcher on steroids. Both firing modes shoot a fast-moving projectile grenade which is influenced by gravity, and thus moves in a parabolic trajectory. The primary fire mode shoots grenades that explode on impact while the secondary fire mode shoots grenades which will bounce off objects, and either explode on contact with an other player, or after a few seconds if they are not triggered. The grenades' arc makes them harder to aim, but also hard to dodge. Since they deal quite high damage, with an excellent rate of fire, the mortar is a solid all-round weapon once you've got the hang of aiming it. The mortar uses rocket ammo which is shared with the Rocket Launcher, T.A.G. Seeker and the Hagar.

The grenade launcher (mortar) was created from a modified Hagar. It is more powerful but needs longer to fire again. The secondary fire mode launches a grenade with a three second timer.