Justicar and Psycannons

[Gwynbleidd]

So I skilled my justicar in psycannons but he is unable to use psychic onslaught. Am I missing something or can justicars not use that skill? I was under the impression that the skill is tied to the weapon.

[Cryten]

Check 1: Ammo? Onslaught requires 2 ammo and some varients of the cannon only have 1. Without the class skills to give more ammo or if you used ammo for normal firing that put you down to 1 you cannot fire it.

Check 2: You have a normal psychic ability for the psycannon? In masterwork items you can get alternative abilities to use the psychic ability slot. So using a psycannon that does not have psychic onslaught would prevent its use, obviously.

Check 3: Willpower? You probably know to check this one but it costs one will power to fire.

[Gwynbleidd]

Thanks for your help. I was looking for it on the skill bar but like its name implies, it is a psychic ability.

[TABRiS]

Ive now got 4 justicars.... I recruited one to soley to give a Psycannon.

Do you think the game ever gives me Psycannons?
Noooooo.

Plenty of Psilencers though....

[Vathek1]

Originally posted by Cryten:

Check 1: Ammo? Onslaught requires 2 ammo and some varients of the cannon only have 1. Without the class skills to give more ammo or if you used ammo for normal firing that put you down to 1 you cannot fire it.

Check 2: You have a normal psychic ability for the psycannon? In masterwork items you can get alternative abilities to use the psychic ability slot. So using a psycannon that does not have psychic onslaught would prevent its use, obviously.

Check 3: Willpower? You probably know to check this one but it costs one will power to fire.

I think all psycannon come with Psychic Onslaught--it's a built in capability to the weapon, just like how all storm bolters allow for psibolts, and all melee weapons (except for the Narthecium) allow you to use Force Strikes with them.

However, it's quite likely that Check 1 is the case here--there's at least one high-damaging Psycannon which only has one ammo maximum. Equipping the extended magazine wargear accessory can make it usable for Psychic Onslaught with a Justicar.

I believe Justicars can also spawn with an innate trait that gives them +1 ranged ammo, but that might only apply to Storm Bolters.