The symbols are the same as for Hero classes.
Pistol: Pistols are single shot weapons with average sized magazines. The first shot is accurate, but some recoil or spread is applied if shooting too fast rate.
Shotgun: Shotguns are single shot weapons with small magazines. Shot consists of multiple pellets spreading heavily, allowing the you to hit multiple targets at once.
SMG: SMGs are burst-fire weapons with average sized magazines. When you shoot once, the weapon will fire in quick 3 bullet bursts. Recoil makes SMGs somewhat inaccurate weapons.
Assault Rifle: Assault Rifles are automatic weapons with large magazines. First shots are more accurate than what the SMGs shoot, but still somewhat inaccurate after few bullets.
Sniper Rifle: Sniper Rifles are single shot weapons with scopes for accurate aiming and small magazines. These weapons are always very accurate, but they’re slow to fire. Shooting: Hold your finger on the screen to have the scoped view, aim by keeping your finger pressed on the screen. The weapon will fire when you lift your finger off of the screen.
Bow: Ranged attacks with Arrows, super effective against Whisperers. The longer you charge your shot with the Bow the more powerful it will be.
Grenade: Grenades are a secondary type of weapon usable during missions. These are thrown by either tapping the icon, or dragging from the icon towards the enemies. This will then throw the grenade in an arc, and it will explode in 1-2 seconds after being thrown, damaging targets in its radius. You can increase the damage Grenades do by finding and upgrading Rosita's Dynamite card, and Carol's Fireworks card will increase the grenade's damage radius.