I've noticed some of the core player models have great sounds, and some others are.. well.. lousy. I've done this sort of thing before for RuneHOV and came up with perhaps the finest viking yell
ever. [Caution: Loud!]. Anyone is free to use it for any purpose. Now obviously there are no berserkers or barbarian vikings in OA, but I have the ability to do certain male voices. I prefer the more sinister and evil sounds, but I can say pretty much anything. Any game models in need of a few voice FX?