Pao Porapak

A commando jungle action movie takes a weird turn toward the end when one of the soldiers miraculously transforms into an ass-kicking werewolf. ...

Thai action film. Scenes from this ended up in the Filmark release Twinkle Ninja Fantasy.

While Sompon leads his group through a forest searching for treasures, they are attacked by ghosts and Sompon is transformed into a werewolf.