Hello everyone! Can you help me? I have a problem with characters models.
In asset viewer this looks good, but in the game the characters have problems with faces.

Are your tags correct?

Looks like some joints have weight on the head and lips.

Export using tomxmodelutil. Import to Maya. Apply bind. Select head and open paint weight tools.
Try to compare to a stock codwaw head with the bind applied.
Or
Paint the head fully then paint jaw eyebrow ect. Make sure the head only has joints associated with the head.

That xmodel has more bones, meaning some animations and or weapons wont work right. Make sure that the character models have less than 130 bones.