Language GOOFS!
There is something seriously wrong with this movie. I hear them speak Thai and Khmer (Cambodian). They are neighboring countries but do not speak the same language. That is so stupid. The scene when the tank was shooting at the building, it's clearly Khmer and he said "you can not run from us, we will shoot to kill".
State champ in martial arts, trained with firearms, I eFF'n dare you!