There are a lot of weapons and skills in S4 League. All weapons and skills offer a "license" which allows a player to test a weapon or skill for a period of time. Licenses may only be obtained once. Weapons can cause criticals which increase the damage done per hit. Weapons do criticals when headshots occur, yet some weapons only do criticals when the attacker is at the same height as his target.

Weapons are divided into 6 classes : Shooting Weapons, Heavy Weapons, Sniping Weapons, Mental Weapons, Installation Weapons and Close Range Weapons, while Skills are only divided into two classes : Active and Passive.