From VBarrack wiki

Introduction

The Gladiator is one of the two specialized classes available to the [Warrior] class once the player hits level 10. Gladiators are the raw strength of any faction, as they're designed to be masters of all weapon types and focus on dealing out a high levels of DPS, both single target and AoE.

While Gladiators excel with sword class weapons, they can use pretty much any weapon, including polearms, bows, daggers, maces, swords, and greatsword. In terms of armor, they can wear anything from basic cloth protection to immense suits of plate armor, although players may find plate to be the armor class best associated with the class. Like all classes, Gladiators have the ability to switch weapons mid-figh. This allows the class to adapt to multiple situations.

Ability

The skill set of the Gladiator is relatively straightforward; they're meant to deal damage to the enemy and be a viable off-tank. AoE skill-chains, stun skills, and the ability to knock down on critical hits due to 2 handed weapons. Because they focus on DPS, the Gladiator isn't as strong of a tank character in comparison to their Templar counterparts due to their lack of defensive skills and values. What they lack in pure tanking ability though, they more than make up with their ability to drop high levels of damage on multiple targets.

Because the point of the Gladiator is to disrupt enemy lines then mercilessly attack them, Gladiators are designed to be at the front of any battle. For that reason, it is advisable to ensure that Gladiators always have proper healing at hand, whether it be from fellow team-mates, abilities, or potions.

Solo Play

Gladiators possess a myriad of attack skills as well high Defense, which allows them to engage in solo combat without much trouble. Also, since they can use a variety of weapons, Gladiators can choose easily switch to a proper weapon appropriate to the situation.

However the Gladiator’s self recovery skills are lacking, so during combat, they must always pay attention to their health. When engaging in solo play, discard the shield and use the two-handed weapon Greatsword or Polearm. There is also a Stigma skill that allows the use of dual weapons.

The Gladiator’s ability to use the polearm allows it to use chain skills to help keep an opponent off their feet and susceptible to various chain skills. It also gives the Gladiator the capability to attack multiple opponents at once.

Group Play

Despite its melee style, the Gladiator possesses "area of effect" attacks, which makes it effective in group play when multiple enemies must be fought at once.

As such, the Gladiator must be mindful of the enmity it creates when using its area of effect skills. In certain situations, it may want to avoid using them and use skills that focus on a single target. In other situations, such as protecting healers and mage classes, The Gladiator may want to be sure to create as much enmity as possible so the attackers focus on it rather than the weaker casters.