Firing Weapons and Abilities

From TaRapedia

Firing weapons and abilities are by default bound to the mouse. Mouse button 1 (left mouse button) is used for firring weapons, while Mouse Button 2 (right mouse button) is used to use an ability. You can cycle which weapon to fire on your Weapon tray by using the default "Q" key on the keyboard and to cycle abilities on your Ability tray you can use the default "E" key.