Killing's what Wes Biriuk does, and he likes what he does, perhaps a little too much. In the heat of battle it is not uncommon for Wes to enter into a maelstrom of rage. In this state a darker side of Wes takes over and he becomes a sadistic, twisted individual. He has no qualms with underhanded and cruel tactics, extreme brutality and a cold disregard for life. With Biriuk, the job will always be done, but the collateral damage will be excessive and perhaps not worth the trouble regardless of his efficiency.

Wes Biriuk is justifiably arrogant. When successfully completing a task of reasonable difficulty or competition, or simply gaining the upper hand in combat, Wes is more than likely to celebrate in an excessive way. This can cause others to not want to work with him as he has a habit of being a bad winner and a showboater. Wes celebrates in varying styles but typically through ungainly dances, singing and excessive drinking. Wes is also known to throw crippling one-liners at opponents.

An over-abundance of energy causes Wes to constantly fidget in various ways such that he is very rarely completely still. Spinning his cleaver or lightsaber about his hand, juggling his grenades, bouncing his leg and drumming surfaces are some usual examples of this. The incessant agitation can cause others to become increasingly hostile towards Wes, especially when in confined spaces. However, when focussed on a task or mission the fidgeting does lessen to only occasional outbursts. In other words, don't bring him on a stakeout.

Wes Biriuk has very few worries. He is confident in his own abilities and happy with his lot in life. This lends to Wes having a very relaxed and calm demeanour.

Where most err on the side of caution in a confrontation, Wes Biriuk prefers to charge in head-first. While others may skirt a battlefield or keep their careful distance, Wes Biriuk rushes in with devastating attacks with seemingly no regard for safety, relying upon instinct and possibly armor to protect him from dismemberment and death during his all-out attacks. Wes Biriuk is a force to be feared on the battlefield, leaving a trail of death and destruction. However, Wes Biriuk's blood-hungry ways put him in far more danger than the normal combatant, often resulting in needless injury and suffering, trading safety for pure offensive ability.

Born with an intractable will and limitless courage, Wes Biriuk will stand in the face of insurmountable odds and never retreat. Despite the fact that such acts of heedless bravery are inspiring and will sometimes result in victories worthy of song, just as often they result in his allies getting wounded or killed.